128799260

素因数分解:

$2^2\times 5^1\times {\mathrm{1109}}^1\times {\mathrm{5807}}^1$

素因数の和:6925

約数の個数: 24

約数和(自身を含む): 270768960

約数和(自身を除く): 141969700

約数列:

[1, 2, 4, 5, 10, 20, 1109, 2218, 4436, 5545, 5807, 11090, 11614, 22180, 23228, 29035, 58070, 116140, 6439963, 12879926, 25759852, 32199815, 64399630, 128799260]

約数ペア:

[(1, 128799260), (2, 64399630), (4, 32199815), (5, 25759852), (10, 12879926), (20, 6439963), (1109, 116140), (2218, 58070), (4436, 29035), (5545, 23228), (5807, 22180), (11090, 11614)]