520079240

素因数分解:

$2^3\times 5^1\times {\mathrm{13001981}}^1$

素因数の和:13001992

約数の個数: 16

約数和(自身を含む): 1170178380

約数和(自身を除く): 650099140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 13001981, 26003962, 52007924, 65009905, 104015848, 130019810, 260039620, 520079240]

約数ペア:

[(1, 520079240), (2, 260039620), (4, 130019810), (5, 104015848), (8, 65009905), (10, 52007924), (20, 26003962), (40, 13001981)]