4268440180

素因数分解:

$2^2\times 5^1\times {\mathrm{213422009}}^1$

素因数の和:213422018

約数の個数: 12

約数和(自身を含む): 8963724420

約数和(自身を除く): 4695284240

約数列:

[1, 2, 4, 5, 10, 20, 213422009, 426844018, 853688036, 1067110045, 2134220090, 4268440180]

約数ペア:

[(1, 4268440180), (2, 2134220090), (4, 1067110045), (5, 853688036), (10, 426844018), (20, 213422009)]