19886200

素因数分解:

$2^3\times 5^2\times {\mathrm{99431}}^1$

素因数の和:99447

約数の個数: 24

約数和(自身を含む): 46235880

約数和(自身を除く): 26349680

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 200, 99431, 198862, 397724, 497155, 795448, 994310, 1988620, 2485775, 3977240, 4971550, 9943100, 19886200]

約数ペア:

[(1, 19886200), (2, 9943100), (4, 4971550), (5, 3977240), (8, 2485775), (10, 1988620), (20, 994310), (25, 795448), (40, 497155), (50, 397724), (100, 198862), (200, 99431)]