66463475

素因数分解:

$5^2\times {\mathrm{13}}^2\times {\mathrm{15731}}^1$

素因数の和:15767

約数の個数: 18

約数和(自身を含む): 89247636

約数和(自身を除く): 22784161

約数列:

[1, 5, 13, 25, 65, 169, 325, 845, 4225, 15731, 78655, 204503, 393275, 1022515, 2658539, 5112575, 13292695, 66463475]

約数ペア:

[(1, 66463475), (5, 13292695), (13, 5112575), (25, 2658539), (65, 1022515), (169, 393275), (325, 204503), (845, 78655), (4225, 15731)]