20180770180

素因数分解:

$2^2\times 5^1\times {\mathrm{1009038509}}^1$

素因数の和:1009038518

約数の個数: 12

約数和(自身を含む): 42379617420

約数和(自身を除く): 22198847240

約数列:

[1, 2, 4, 5, 10, 20, 1009038509, 2018077018, 4036154036, 5045192545, 10090385090, 20180770180]

約数ペア:

[(1, 20180770180), (2, 10090385090), (4, 5045192545), (5, 4036154036), (10, 2018077018), (20, 1009038509)]