Order 400.
63 conjugacy classes of subgroups.
| # | subgroup | G/H | class size | multiplicity | normal? | properties |
|---|---|---|---|---|---|---|
| 1 | D5⋊AGL(1,𝔽5) | C2 | 1 | 1 | yes | maximal, characteristic |
| 2 | D5×AGL(1,𝔽5) | C2 | 1 | 2 | yes | maximal |
| 3 | D52 | C22 | 1 | 1 | yes | characteristic |
| 4 | #1044 | C4 | 1 | 1 | yes | characteristic, complemented |
| 5 | #1043 | C4 | 1 | 1 | yes | characteristic, complemented |
| 6 | #1042 | C4 | 1 | 2 | yes | complemented |
| 7 | C5×AGL(1,𝔽5) | C4 | 1 | 2 | yes | complemented |
| 8 | C4×AGL(1,𝔽5) | — | 5 | 2 | no | maximal |
| 9 | C5⋊D5 | C2×C4 | 1 | 1 | yes | characteristic |
| 10 | C5×D5 | C2×C4 | 1 | 2 | yes | — |
| 11 | C2×AGL(1,𝔽5) | — | 5 | 2 | no | — |
| 12 | C2×AGL(1,𝔽5) | — | 5 | 2 | no | — |
| 13 | C4×D5 | — | 5 | 2 | no | — |
| 14 | C52 | C42 | 1 | 1 | yes | characteristic, complemented, Sylow |
| 15 | C2×D5 | — | 5 | 2 | no | — |
| 16 | AGL(1,𝔽5) | — | 5 | 2 | no | — |
| 17 | AGL(1,𝔽5) | — | 5 | 2 | no | — |
| 18 | AGL(1,𝔽5) | — | 5 | 2 | no | — |
| 19 | AGL(1,𝔽5) | — | 20 | 1 | no | — |
| 20 | AGL(1,𝔽5) | AGL(1,𝔽5) | 1 | 2 | yes | direct product factor |
| 21 | C4×C5 | — | 5 | 2 | no | — |
| 22 | Dic5 | — | 5 | 2 | no | — |
| 23 | C42 | — | 25 | 1 | no | Sylow |
| 24 | C2×C5 | — | 5 | 2 | no | — |
| 25 | D5 | — | 5 | 2 | no | — |
| 26 | D5 | — | 20 | 1 | no | — |
| 27 | D5 | C2×AGL(1,𝔽5) | 1 | 2 | yes | — |
| 28 | C2×C4 | — | 25 | 2 | no | — |
| 29 | C2×C4 | — | 25 | 1 | no | — |
| 30 | C5 | — | 4 | 1 | no | — |
| 31 | C5 | C4×AGL(1,𝔽5) | 1 | 2 | yes | complemented |
| 32 | C22 | — | 25 | 1 | no | — |
| 33 | C4 | — | 5 | 2 | no | — |
| 34 | C4 | — | 25 | 2 | no | — |
| 35 | C4 | — | 25 | 1 | no | — |
| 36 | C4 | — | 25 | 1 | no | — |
| 37 | C2 | — | 5 | 2 | no | — |
| 38 | C2 | — | 25 | 1 | no | — |
| subgroup | G/H | |
|---|---|---|
| center, Frattini, hypercenter | C1 | G |
| commutator, Fitting, socle, hypocenter | C52 | C42 |
| prime radical, cosocle | D52 | C22 |
| LCS | G ▷ C52 | |
| UCS | C1 | |
Splittings G = N ⋊ H with N normal; H ≅ G/N.
| N | H ≅ G/N | type |
|---|---|---|
| 4. #1044 | C4 | semidirect |
| 5. #1043 | C4 | semidirect |
| 6. #1042 | C4 | semidirect |
| 7. C5×AGL(1,𝔽5) | C4 | semidirect |
| 14. C52 | C42 | semidirect |
| 20. AGL(1,𝔽5) | AGL(1,𝔽5) | direct (N × H) |
| 31. C5 | C4×AGL(1,𝔽5) | semidirect |
By isomorphism type — maximal subgroups of the same type appear once, whether or not they are normal.
| subgroup | index |
|---|---|
| D5⋊AGL(1,𝔽5) | 2 |
| D5×AGL(1,𝔽5) | 2 |
| C4×AGL(1,𝔽5) | 5 |