208079240

素因数分解:

$2^3\times 5^1\times {\mathrm{5201981}}^1$

素因数の和:5201992

約数の個数: 16

約数和(自身を含む): 468178380

約数和(自身を除く): 260099140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 5201981, 10403962, 20807924, 26009905, 41615848, 52019810, 104039620, 208079240]

約数ペア:

[(1, 208079240), (2, 104039620), (4, 52019810), (5, 41615848), (8, 26009905), (10, 20807924), (20, 10403962), (40, 5201981)]