20257540

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{59581}}^1$

素因数の和:59607

約数の個数: 24

約数和(自身を含む): 45043992

約数和(自身を除く): 24786452

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 59581, 119162, 238324, 297905, 595810, 1012877, 1191620, 2025754, 4051508, 5064385, 10128770, 20257540]

約数ペア:

[(1, 20257540), (2, 10128770), (4, 5064385), (5, 4051508), (10, 2025754), (17, 1191620), (20, 1012877), (34, 595810), (68, 297905), (85, 238324), (170, 119162), (340, 59581)]