217160395

素因数分解:

$5^1\times {\mathrm{41}}^1\times {\mathrm{139}}^1\times {\mathrm{7621}}^1$

素因数の和:7806

約数の個数: 16

約数和(自身を含む): 268904160

約数和(自身を除く): 51743765

約数列:

[1, 5, 41, 139, 205, 695, 5699, 7621, 28495, 38105, 312461, 1059319, 1562305, 5296595, 43432079, 217160395]

約数ペア:

[(1, 217160395), (5, 43432079), (41, 5296595), (139, 1562305), (205, 1059319), (695, 312461), (5699, 38105), (7621, 28495)]