90664180

素因数分解:

$2^2\times 5^1\times {\mathrm{4533209}}^1$

素因数の和:4533218

約数の個数: 12

約数和(自身を含む): 190394820

約数和(自身を除く): 99730640

約数列:

[1, 2, 4, 5, 10, 20, 4533209, 9066418, 18132836, 22666045, 45332090, 90664180]

約数ペア:

[(1, 90664180), (2, 45332090), (4, 22666045), (5, 18132836), (10, 9066418), (20, 4533209)]