18163640

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{41281}}^1$

素因数の和:41303

約数の個数: 32

約数和(自身を含む): 44584560

約数和(自身を除く): 26420920

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 41281, 82562, 165124, 206405, 330248, 412810, 454091, 825620, 908182, 1651240, 1816364, 2270455, 3632728, 4540910, 9081820, 18163640]

約数ペア:

[(1, 18163640), (2, 9081820), (4, 4540910), (5, 3632728), (8, 2270455), (10, 1816364), (11, 1651240), (20, 908182), (22, 825620), (40, 454091), (44, 412810), (55, 330248), (88, 206405), (110, 165124), (220, 82562), (440, 41281)]