Order 320.
86 conjugacy classes of subgroups.
Splittings G = N ⋊ H with N normal; H ≅ G/N.
| N | H ≅ G/N | type |
|---|---|---|
| 2. #3999 | C2 | semidirect |
| 4. C2×D20 | C4 | semidirect |
| 7. C42×C5 | C4 | semidirect |
| 31. C42 | AGL(1,𝔽5) | semidirect |
| 44. C5 | #353 | semidirect |
By isomorphism type — maximal subgroups of the same type appear once, whether or not they are normal.
| subgroup | index |
|---|---|
| #4020 | 2 |
| #3999 | 2 |
| #353 | 5 |