20217800

素因数分解:

$2^3\times 5^2\times {\mathrm{101089}}^1$

素因数の和:101105

約数の個数: 24

約数和(自身を含む): 47006850

約数和(自身を除く): 26789050

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 200, 101089, 202178, 404356, 505445, 808712, 1010890, 2021780, 2527225, 4043560, 5054450, 10108900, 20217800]

約数ペア:

[(1, 20217800), (2, 10108900), (4, 5054450), (5, 4043560), (8, 2527225), (10, 2021780), (20, 1010890), (25, 808712), (40, 505445), (50, 404356), (100, 202178), (200, 101089)]