15 groups of order 20620.
| SmallGroups | group |
|---|---|
| (20620, 1) | C4×C5×C1031 #35207343 |
| (20620, 2) | Dic1031⋊C5 #35207344 |
| (20620, 3) | C4×C1031⋊C5 #35207345 |
| (20620, 4) | Dic5×C1031 #35207346 |
| (20620, 5) | C5×Dic1031 #35207347 |
| (20620, 6) | Dic5155 #35207348 |
| (20620, 7) | C22×C5×C1031 #35207349 |
| (20620, 8) | C2×D1031⋊C5 #35207350 |
| (20620, 9) | C22×C1031⋊C5 #35207351 |
| (20620, 10) | AGL(1,𝔽5)×C1031 #35207352 |
| (20620, 11) | C1031⋊AGL(1,𝔽5) #35207353 |
| (20620, 12) | D5×D1031 #35207354 |
| (20620, 13) | C2×C5×D1031 #35207355 |
| (20620, 14) | C2×D5×C1031 #35207356 |
| (20620, 15) | C2×D5155 #35207357 |