19763020

素因数分解:

$2^2\times 5^1\times {\mathrm{139}}^1\times {\mathrm{7109}}^1$

素因数の和:7257

約数の個数: 24

約数和(自身を含む): 41806800

約数和(自身を除く): 22043780

約数列:

[1, 2, 4, 5, 10, 20, 139, 278, 556, 695, 1390, 2780, 7109, 14218, 28436, 35545, 71090, 142180, 988151, 1976302, 3952604, 4940755, 9881510, 19763020]

約数ペア:

[(1, 19763020), (2, 9881510), (4, 4940755), (5, 3952604), (10, 1976302), (20, 988151), (139, 142180), (278, 71090), (556, 35545), (695, 28436), (1390, 14218), (2780, 7109)]