28521800

素因数分解:

$2^3\times 5^2\times {\mathrm{142609}}^1$

素因数の和:142625

約数の個数: 24

約数和(自身を含む): 66313650

約数和(自身を除く): 37791850

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 200, 142609, 285218, 570436, 713045, 1140872, 1426090, 2852180, 3565225, 5704360, 7130450, 14260900, 28521800]

約数ペア:

[(1, 28521800), (2, 14260900), (4, 7130450), (5, 5704360), (8, 3565225), (10, 2852180), (20, 1426090), (25, 1140872), (40, 713045), (50, 570436), (100, 285218), (200, 142609)]