72520040

素因数分解:

$2^3\times 5^1\times {\mathrm{1813001}}^1$

素因数の和:1813012

約数の個数: 16

約数和(自身を含む): 163170180

約数和(自身を除く): 90650140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1813001, 3626002, 7252004, 9065005, 14504008, 18130010, 36260020, 72520040]

約数ペア:

[(1, 72520040), (2, 36260020), (4, 18130010), (5, 14504008), (8, 9065005), (10, 7252004), (20, 3626002), (40, 1813001)]