20289800

素因数分解:

$2^3\times 5^2\times {\mathrm{101449}}^1$

素因数の和:101465

約数の個数: 24

約数和(自身を含む): 47174250

約数和(自身を除く): 26884450

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 200, 101449, 202898, 405796, 507245, 811592, 1014490, 2028980, 2536225, 4057960, 5072450, 10144900, 20289800]

約数ペア:

[(1, 20289800), (2, 10144900), (4, 5072450), (5, 4057960), (8, 2536225), (10, 2028980), (20, 1014490), (25, 811592), (40, 507245), (50, 405796), (100, 202898), (200, 101449)]