87163780

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{396199}}^1$

素因数の和:396219

約数の個数: 24

約数和(自身を含む): 199684800

約数和(自身を除く): 112521020

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 396199, 792398, 1584796, 1980995, 3961990, 4358189, 7923980, 8716378, 17432756, 21790945, 43581890, 87163780]

約数ペア:

[(1, 87163780), (2, 43581890), (4, 21790945), (5, 17432756), (10, 8716378), (11, 7923980), (20, 4358189), (22, 3961990), (44, 1980995), (55, 1584796), (110, 792398), (220, 396199)]