20660575

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{151}}^1\times {\mathrm{421}}^1$

素因数の和:595

約数の個数: 24

約数和(自身を含む): 27838496

約数和(自身を除く): 7177921

約数列:

[1, 5, 13, 25, 65, 151, 325, 421, 755, 1963, 2105, 3775, 5473, 9815, 10525, 27365, 49075, 63571, 136825, 317855, 826423, 1589275, 4132115, 20660575]

約数ペア:

[(1, 20660575), (5, 4132115), (13, 1589275), (25, 826423), (65, 317855), (151, 136825), (325, 63571), (421, 49075), (755, 27365), (1963, 10525), (2105, 9815), (3775, 5473)]