66108575

素因数分解:

$5^2\times {\mathrm{13}}^2\times {\mathrm{15647}}^1$

素因数の和:15683

約数の個数: 18

約数和(自身を含む): 88771104

約数和(自身を除く): 22662529

約数列:

[1, 5, 13, 25, 65, 169, 325, 845, 4225, 15647, 78235, 203411, 391175, 1017055, 2644343, 5085275, 13221715, 66108575]

約数ペア:

[(1, 66108575), (5, 13221715), (13, 5085275), (25, 2644343), (65, 1017055), (169, 391175), (325, 203411), (845, 78235), (4225, 15647)]