19815260

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{23041}}^1$

素因数の和:23093

約数の個数: 24

約数和(自身を含む): 42581616

約数和(自身を除く): 22766356

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 172, 215, 430, 860, 23041, 46082, 92164, 115205, 230410, 460820, 990763, 1981526, 3963052, 4953815, 9907630, 19815260]

約数ペア:

[(1, 19815260), (2, 9907630), (4, 4953815), (5, 3963052), (10, 1981526), (20, 990763), (43, 460820), (86, 230410), (172, 115205), (215, 92164), (430, 46082), (860, 23041)]