20265550

素因数分解:

$2^1\times 5^2\times {\mathrm{359}}^1\times {\mathrm{1129}}^1$

素因数の和:1500

約数の個数: 24

約数和(自身を含む): 37832400

約数和(自身を除く): 17566850

約数列:

[1, 2, 5, 10, 25, 50, 359, 718, 1129, 1795, 2258, 3590, 5645, 8975, 11290, 17950, 28225, 56450, 405311, 810622, 2026555, 4053110, 10132775, 20265550]

約数ペア:

[(1, 20265550), (2, 10132775), (5, 4053110), (10, 2026555), (25, 810622), (50, 405311), (359, 56450), (718, 28225), (1129, 17950), (1795, 11290), (2258, 8975), (3590, 5645)]