16 groups of order 405.
| SmallGroups | group |
|---|---|
| (405, 1) | C5×C81 #87941 |
| (405, 2) | C5×C92 #87942 |
| (405, 3) | C5×C32⋊C9 #87943 |
| (405, 4) | C5×C9⋊C9 #87944 |
| (405, 5) | C3×C5×C27 #87945 |
| (405, 6) | C5×C27⋊C3 #87946 |
| (405, 7) | C5×AΣL(1,𝔽27) #87947 |
| (405, 8) | C5×#731 #87948 |
| (405, 9) | C5×#732 #87949 |
| (405, 10) | C5×#733 #87950 |
| (405, 11) | C32×C5×C9 #87951 |
| (405, 12) | C3×C5×H(3,𝔽3) #87952 |
| (405, 13) | C3×C5×3−1+2 #87953 |
| (405, 14) | C5×#737 #87954 |
| (405, 15) | C34⋊C5 #87955 |
| (405, 16) | C34×C5 #87956 |