17980540

素因数分解:

$2^2\times 5^1\times {\mathrm{181}}^1\times {\mathrm{4967}}^1$

素因数の和:5157

約数の個数: 24

約数和(自身を含む): 37975392

約数和(自身を除く): 19994852

約数列:

[1, 2, 4, 5, 10, 20, 181, 362, 724, 905, 1810, 3620, 4967, 9934, 19868, 24835, 49670, 99340, 899027, 1798054, 3596108, 4495135, 8990270, 17980540]

約数ペア:

[(1, 17980540), (2, 8990270), (4, 4495135), (5, 3596108), (10, 1798054), (20, 899027), (181, 99340), (362, 49670), (724, 24835), (905, 19868), (1810, 9934), (3620, 4967)]