217872475

素因数分解:

$5^2\times {\mathrm{113}}^1\times {\mathrm{233}}^1\times {\mathrm{331}}^1$

素因数の和:687

約数の個数: 24

約数和(自身を含む): 274549392

約数和(自身を除く): 56676917

約数列:

[1, 5, 25, 113, 233, 331, 565, 1165, 1655, 2825, 5825, 8275, 26329, 37403, 77123, 131645, 187015, 385615, 658225, 935075, 1928075, 8714899, 43574495, 217872475]

約数ペア:

[(1, 217872475), (5, 43574495), (25, 8714899), (113, 1928075), (233, 935075), (331, 658225), (565, 385615), (1165, 187015), (1655, 131645), (2825, 77123), (5825, 37403), (8275, 26329)]