851240

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1637}}^1$

素因数の和:1661

約数の個数: 32

約数和(自身を含む): 2063880

約数和(自身を除く): 1212640

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 1637, 3274, 6548, 8185, 13096, 16370, 21281, 32740, 42562, 65480, 85124, 106405, 170248, 212810, 425620, 851240]

約数ペア:

[(1, 851240), (2, 425620), (4, 212810), (5, 170248), (8, 106405), (10, 85124), (13, 65480), (20, 42562), (26, 32740), (40, 21281), (52, 16370), (65, 13096), (104, 8185), (130, 6548), (260, 3274), (520, 1637)]