18968380

素因数分解:

$2^2\times 5^1\times {\mathrm{223}}^1\times {\mathrm{4253}}^1$

素因数の和:4485

約数の個数: 24

約数和(自身を含む): 40021632

約数和(自身を除く): 21053252

約数列:

[1, 2, 4, 5, 10, 20, 223, 446, 892, 1115, 2230, 4253, 4460, 8506, 17012, 21265, 42530, 85060, 948419, 1896838, 3793676, 4742095, 9484190, 18968380]

約数ペア:

[(1, 18968380), (2, 9484190), (4, 4742095), (5, 3793676), (10, 1896838), (20, 948419), (223, 85060), (446, 42530), (892, 21265), (1115, 17012), (2230, 8506), (4253, 4460)]