425620

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1637}}^1$

素因数の和:1659

約数の個数: 24

約数和(自身を含む): 963144

約数和(自身を除く): 537524

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 1637, 3274, 6548, 8185, 16370, 21281, 32740, 42562, 85124, 106405, 212810, 425620]

約数ペア:

[(1, 425620), (2, 212810), (4, 106405), (5, 85124), (10, 42562), (13, 32740), (20, 21281), (26, 16370), (52, 8185), (65, 6548), (130, 3274), (260, 1637)]