12644125

素因数分解:

$5^3\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{251}}^1$

素因数の和:310

約数の個数: 32

約数和(自身を含む): 17611776

約数和(自身を除く): 4967651

約数列:

[1, 5, 13, 25, 31, 65, 125, 155, 251, 325, 403, 775, 1255, 1625, 2015, 3263, 3875, 6275, 7781, 10075, 16315, 31375, 38905, 50375, 81575, 101153, 194525, 407875, 505765, 972625, 2528825, 12644125]

約数ペア:

[(1, 12644125), (5, 2528825), (13, 972625), (25, 505765), (31, 407875), (65, 194525), (125, 101153), (155, 81575), (251, 50375), (325, 38905), (403, 31375), (775, 16315), (1255, 10075), (1625, 7781), (2015, 6275), (3263, 3875)]