20198680

素因数分解:

$2^3\times 5^1\times {\mathrm{504967}}^1$

素因数の和:504978

約数の個数: 16

約数和(自身を含む): 45447120

約数和(自身を除く): 25248440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 504967, 1009934, 2019868, 2524835, 4039736, 5049670, 10099340, 20198680]

約数ペア:

[(1, 20198680), (2, 10099340), (4, 5049670), (5, 4039736), (8, 2524835), (10, 2019868), (20, 1009934), (40, 504967)]