1991060

素因数分解:

$2^2\times 5^1\times {\mathrm{113}}^1\times {\mathrm{881}}^1$

素因数の和:1003

約数の個数: 24

約数和(自身を含む): 4223016

約数和(自身を除く): 2231956

約数列:

[1, 2, 4, 5, 10, 20, 113, 226, 452, 565, 881, 1130, 1762, 2260, 3524, 4405, 8810, 17620, 99553, 199106, 398212, 497765, 995530, 1991060]

約数ペア:

[(1, 1991060), (2, 995530), (4, 497765), (5, 398212), (10, 199106), (20, 99553), (113, 17620), (226, 8810), (452, 4405), (565, 3524), (881, 2260), (1130, 1762)]