19853360

素因数分解:

$2^4\times 5^1\times {\mathrm{248167}}^1$

素因数の和:248180

約数の個数: 20

約数和(自身を含む): 46159248

約数和(自身を除く): 26305888

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 248167, 496334, 992668, 1240835, 1985336, 2481670, 3970672, 4963340, 9926680, 19853360]

約数ペア:

[(1, 19853360), (2, 9926680), (4, 4963340), (5, 3970672), (8, 2481670), (10, 1985336), (16, 1240835), (20, 992668), (40, 496334), (80, 248167)]