666549325

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{251}}^1\times {\mathrm{8171}}^1$

素因数の和:8445

約数の個数: 24

約数和(自身を含む): 893755296

約数和(自身を除く): 227205971

約数列:

[1, 5, 13, 25, 65, 251, 325, 1255, 3263, 6275, 8171, 16315, 40855, 81575, 106223, 204275, 531115, 2050921, 2655575, 10254605, 26661973, 51273025, 133309865, 666549325]

約数ペア:

[(1, 666549325), (5, 133309865), (13, 51273025), (25, 26661973), (65, 10254605), (251, 2655575), (325, 2050921), (1255, 531115), (3263, 204275), (6275, 106223), (8171, 81575), (16315, 40855)]