18261620

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{70237}}^1$

素因数の和:70259

約数の個数: 24

約数和(自身を含む): 41299944

約数和(自身を除く): 23038324

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 70237, 140474, 280948, 351185, 702370, 913081, 1404740, 1826162, 3652324, 4565405, 9130810, 18261620]

約数ペア:

[(1, 18261620), (2, 9130810), (4, 4565405), (5, 3652324), (10, 1826162), (13, 1404740), (20, 913081), (26, 702370), (52, 351185), (65, 280948), (130, 140474), (260, 70237)]