18311620

素因数分解:

$2^2\times 5^1\times {\mathrm{631}}^1\times {\mathrm{1451}}^1$

素因数の和:2091

約数の個数: 24

約数和(自身を含む): 38541888

約数和(自身を除く): 20230268

約数列:

[1, 2, 4, 5, 10, 20, 631, 1262, 1451, 2524, 2902, 3155, 5804, 6310, 7255, 12620, 14510, 29020, 915581, 1831162, 3662324, 4577905, 9155810, 18311620]

約数ペア:

[(1, 18311620), (2, 9155810), (4, 4577905), (5, 3662324), (10, 1831162), (20, 915581), (631, 29020), (1262, 14510), (1451, 12620), (2524, 7255), (2902, 6310), (3155, 5804)]