66409780

素因数分解:

$2^2\times 5^1\times {\mathrm{881}}^1\times {\mathrm{3769}}^1$

素因数の和:4659

約数の個数: 24

約数和(自身を含む): 139655880

約数和(自身を除く): 73246100

約数列:

[1, 2, 4, 5, 10, 20, 881, 1762, 3524, 3769, 4405, 7538, 8810, 15076, 17620, 18845, 37690, 75380, 3320489, 6640978, 13281956, 16602445, 33204890, 66409780]

約数ペア:

[(1, 66409780), (2, 33204890), (4, 16602445), (5, 13281956), (10, 6640978), (20, 3320489), (881, 75380), (1762, 37690), (3524, 18845), (3769, 17620), (4405, 15076), (7538, 8810)]