Order 16448.
312 conjugacy classes of subgroups.
| subgroup | G/H | |
|---|---|---|
| center, Frattini | C22 | C23×D257 |
| commutator, socle, cosocle | C22×C257 | C24 |
| Fitting | C4×Q8×C257 | C2 |
| hypercenter | C4×Q8 | D257 |
| hypocenter | C257 | #550 |
| LCS | G ▷ C22×C257 ▷ C257 | |
| UCS | C1 ◁ C22 ◁ C4×Q8 | |
Splittings G = N ⋊ H with N normal; H ≅ G/N.
| N | H ≅ G/N | type |
|---|---|---|
| 1. C2×#16861619 | C2 | semidirect |
| 2. #22551589 | C2 | semidirect |
| 3. #22551567 | C2 | semidirect |
| 4. C4×D1028 | C2 | semidirect |
| 5. C4×Q8×C257 | C2 | semidirect |
| 22. Q8×C257 | D4 | semidirect |
| 32. C4×C257 | #41 | semidirect |
| 38. C257 | #550 | semidirect |
| 43. C4×Q8 | D257 | semidirect |
| 56. Q8 | D1028 | semidirect |
| 72. C4 | #16861619 | semidirect |
By isomorphism type — maximal subgroups of the same type appear once, whether or not they are normal.
| subgroup | index |
|---|---|
| C2×#16861619 | 2 |
| #22551589 | 2 |
| #22551567 | 2 |
| C4×D1028 | 2 |
| C4×Q8×C257 | 2 |
| #550 | 257 |