Group action invariants
| Degree $n$ : | $20$ | |
| Transitive number $t$ : | $525$ | |
| Parity: | $-1$ | |
| Primitive: | No | |
| Nilpotency class: | $-1$ (not nilpotent) | |
| Generators: | (19,20), (1,3,6,8,10,12,14,16,18,20)(2,4,5,7,9,11,13,15,17,19), (1,16,2,15)(3,13)(4,14)(5,11)(6,12)(7,9)(8,10)(17,19,18,20) | |
| $|\Aut(F/K)|$: | $2$ |
Low degree resolvents
|G/N| Galois groups for stem field(s) 2: $C_2$ x 7 4: $C_2^2$ x 7 8: $D_{4}$ x 2, $C_2^3$ 10: $D_{5}$ 16: $D_4\times C_2$ 20: $D_{10}$ x 3 40: 20T8 80: 20T21 160: $(C_2^4 : C_5) : C_2$ 320: $C_2\times (C_2^4 : D_5)$ x 3 640: 20T141 1280: 20T187 5120: 20T328 10240: 20T430 Resolvents shown for degrees $\leq 47$
Subfields
Degree 2: $C_2$
Degree 4: None
Degree 5: $D_{5}$
Degree 10: $D_{10}$
Low degree siblings
20T522 x 24, 20T525 x 23, 40T11270 x 12, 40T11276 x 12, 40T11278 x 6, 40T11307 x 6, 40T11321 x 12, 40T11322 x 12, 40T11396 x 24, 40T11397 x 24, 40T11398 x 24, 40T11399 x 24, 40T11772 x 12, 40T11791 x 12, 40T11793 x 24, 40T11971 x 6, 40T11983 x 12, 40T11990 x 6, 40T11995 x 12, 40T12003 x 12, 40T12005 x 24, 40T12851 x 24, 40T12934 x 6, 40T12941 x 12, 40T12947 x 12, 40T13060 x 12, 40T13086 x 24, 40T13729 x 6, 40T13796 x 12, 40T13823 x 12, 40T13824 x 12, 40T13833 x 12, 40T13838 x 12, 40T13841 x 24, 40T13843 x 24, 40T13852 x 24, 40T13934 x 12, 40T13969 x 24, 40T13977 x 24, 40T13992 x 24, 40T13993 x 24, 40T13994 x 24, 40T13995 x 24, 40T13996 x 48, 40T13997 x 48, 40T13998 x 48, 40T13999 x 48, 40T14065 x 24, 40T14066 x 24, 40T14067 x 24, 40T14068 x 24, 40T14069 x 24, 40T14070 x 24, 40T14071 x 48, 40T14108 x 24, 40T14109 x 24, 40T14110 x 48, 40T14193 x 24, 40T14197 x 24, 40T14200 x 24, 40T14203 x 24, 40T14210 x 24, 40T14211 x 24, 40T14213 x 24, 40T14214 x 24, 40T14215 x 48, 40T14216 x 48Siblings are shown with degree $\leq 47$
A number field with this Galois group has no arithmetically equivalent fields.
Conjugacy Classes
There are 152 conjugacy classes of elements. Data not shown.
Group invariants
| Order: | $20480=2^{12} \cdot 5$ | |
| Cyclic: | No | |
| Abelian: | No | |
| Solvable: | Yes | |
| GAP id: | Data not available |
| Character table: Data not available. |