421200140

素因数分解:

$2^2\times 5^1\times {\mathrm{1709}}^1\times {\mathrm{12323}}^1$

素因数の和:14041

約数の個数: 24

約数和(自身を含む): 885109680

約数和(自身を除く): 463909540

約数列:

[1, 2, 4, 5, 10, 20, 1709, 3418, 6836, 8545, 12323, 17090, 24646, 34180, 49292, 61615, 123230, 246460, 21060007, 42120014, 84240028, 105300035, 210600070, 421200140]

約数ペア:

[(1, 421200140), (2, 210600070), (4, 105300035), (5, 84240028), (10, 42120014), (20, 21060007), (1709, 246460), (3418, 123230), (6836, 61615), (8545, 49292), (12323, 34180), (17090, 24646)]