20 groups of order 16420.
| SmallGroups | group |
|---|---|
| (16420, 1) | C4×C5×C821 #30655955 |
| (16420, 2) | Dic821⋊C5 #30655956 |
| (16420, 3) | C4×C821⋊C5 #30655957 |
| (16420, 4) | Dic5×C821 #30655958 |
| (16420, 5) | C5×Dic821 #30655959 |
| (16420, 6) | Dic4105 #30655960 |
| (16420, 7) | C22×C5×C821 #30655961 |
| (16420, 8) | #15692846⋊C5 #30655962 |
| (16420, 9) | C2×D821⋊C5 #30655963 |
| (16420, 10) | C22×C821⋊C5 #30655964 |
| (16420, 11) | C5×#15692846 #30655965 |
| (16420, 12) | AGL(1,𝔽5)×C821 #30655966 |
| (16420, 13) | #30655967 |
| (16420, 14) | #30655968 |
| (16420, 15) | #30655969 |
| (16420, 16) | #30655970 |
| (16420, 17) | D5×D821 #30655971 |
| (16420, 18) | C2×D4105 #30655972 |
| (16420, 19) | C2×D5×C821 #30655973 |
| (16420, 20) | C2×C5×D821 #30655974 |