18735620

素因数分解:

$2^2\times 5^1\times {\mathrm{131}}^1\times {\mathrm{7151}}^1$

素因数の和:7291

約数の個数: 24

約数和(自身を含む): 39650688

約数和(自身を除く): 20915068

約数列:

[1, 2, 4, 5, 10, 20, 131, 262, 524, 655, 1310, 2620, 7151, 14302, 28604, 35755, 71510, 143020, 936781, 1873562, 3747124, 4683905, 9367810, 18735620]

約数ペア:

[(1, 18735620), (2, 9367810), (4, 4683905), (5, 3747124), (10, 1873562), (20, 936781), (131, 143020), (262, 71510), (524, 35755), (655, 28604), (1310, 14302), (2620, 7151)]