Order 400.
43 conjugacy classes of subgroups.
| # | subgroup | G/H | class size | multiplicity | normal? | properties |
|---|---|---|---|---|---|---|
| 1 | D5×Dic5 | C2 | 1 | 1 | yes | maximal, characteristic |
| 2 | #6032 | C2 | 1 | 1 | yes | maximal, characteristic, complemented |
| 3 | C5×#170 | C2 | 1 | 1 | yes | maximal, characteristic, complemented |
| 4 | C2×C5×D5 | C4 | 1 | 1 | yes | characteristic |
| 5 | #1039 | C4 | 1 | 1 | yes | characteristic |
| 6 | C5×Dic5 | C22 | 1 | 1 | yes | characteristic |
| 7 | #704 | — | 5 | 1 | no | maximal |
| 8 | #676 | — | 5 | 1 | no | maximal |
| 9 | C2×C52 | C2×C4 | 1 | 1 | yes | characteristic |
| 10 | C5×D5 | — | 2 | 1 | no | — |
| 11 | C2×Dic5 | — | 5 | 1 | no | — |
| 12 | C4×D5 | — | 5 | 1 | no | — |
| 13 | #170 | — | 5 | 1 | no | — |
| 14 | #170 | D5 | 1 | 1 | yes | characteristic, complemented |
| 15 | C5×C8 | — | 5 | 1 | no | — |
| 16 | #168 | — | 5 | 1 | no | — |
| 17 | C52 | M16 | 1 | 1 | yes | characteristic, complemented, Sylow |
| 18 | C22×C5 | — | 5 | 1 | no | — |
| 19 | C2×D5 | AGL(1,𝔽5) | 1 | 1 | yes | characteristic |
| 20 | C4×C5 | — | 5 | 1 | no | — |
| 21 | Dic5 | — | 5 | 1 | no | — |
| 22 | Dic5 | — | 5 | 1 | no | — |
| 23 | Dic5 | — | 20 | 1 | no | — |
| 24 | Dic5 | C2×D5 | 1 | 1 | yes | characteristic |
| 25 | M16 | — | 25 | 1 | no | Sylow |
| 26 | C2×C5 | — | 4 | 1 | no | — |
| 27 | C2×C5 | — | 10 | 1 | no | — |
| 28 | C2×C5 | C4×D5 | 1 | 1 | yes | characteristic |
| 29 | C2×C5 | C2×AGL(1,𝔽5) | 1 | 1 | yes | characteristic |
| 30 | D5 | — | 2 | 1 | no | — |
| 31 | C2×C4 | — | 25 | 1 | no | — |
| 32 | C8 | — | 5 | 1 | no | — |
| 33 | C8 | — | 25 | 1 | no | — |
| 34 | C5 | — | 4 | 1 | no | — |
| 35 | C5 | #676 | 1 | 1 | yes | characteristic, complemented |
| 36 | C5 | #704 | 1 | 1 | yes | characteristic, complemented |
| 37 | C22 | — | 5 | 1 | no | — |
| 38 | C4 | — | 5 | 1 | no | — |
| 39 | C4 | — | 25 | 1 | no | — |
| 40 | C2 | — | 10 | 1 | no | — |
| 41 | C2 | D5×AGL(1,𝔽5) | 1 | 1 | yes | characteristic |
| subgroup | G/H | |
|---|---|---|
| center, Frattini, hypercenter | C2 | D5×AGL(1,𝔽5) |
| commutator, Fitting, socle | C2×C52 | C2×C4 |
| prime radical | C2×C5×D5 | C4 |
| cosocle | C5×Dic5 | C22 |
| hypocenter | C52 | M16 |
| LCS | G ▷ C2×C52 ▷ C52 | |
| UCS | C1 ◁ C2 | |
Splittings G = N ⋊ H with N normal; H ≅ G/N.
| N | H ≅ G/N | type |
|---|---|---|
| 2. #6032 | C2 | semidirect |
| 3. C5×#170 | C2 | semidirect |
| 14. #170 | D5 | semidirect |
| 17. C52 | M16 | semidirect |
| 35. C5 | #676 | semidirect |
| 36. C5 | #704 | semidirect |
By isomorphism type — maximal subgroups of the same type appear once, whether or not they are normal.
| subgroup | index |
|---|---|
| D5×Dic5 | 2 |
| #6032 | 2 |
| C5×#170 | 2 |
| #704 | 5 |
| #676 | 5 |