19888480

素因数分解:

$2^5\times 5^1\times {\mathrm{124303}}^1$

素因数の和:124318

約数の個数: 24

約数和(自身を含む): 46986912

約数和(自身を除く): 27098432

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 124303, 248606, 497212, 621515, 994424, 1243030, 1988848, 2486060, 3977696, 4972120, 9944240, 19888480]

約数ペア:

[(1, 19888480), (2, 9944240), (4, 4972120), (5, 3977696), (8, 2486060), (10, 1988848), (16, 1243030), (20, 994424), (32, 621515), (40, 497212), (80, 248606), (160, 124303)]