1801390

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^2\times {\mathrm{499}}^1$

素因数の和:544

約数の個数: 24

約数和(自身を含む): 3429000

約数和(自身を除く): 1627610

約数列:

[1, 2, 5, 10, 19, 38, 95, 190, 361, 499, 722, 998, 1805, 2495, 3610, 4990, 9481, 18962, 47405, 94810, 180139, 360278, 900695, 1801390]

約数ペア:

[(1, 1801390), (2, 900695), (5, 360278), (10, 180139), (19, 94810), (38, 47405), (95, 18962), (190, 9481), (361, 4990), (499, 3610), (722, 2495), (998, 1805)]