20199498040

素因数分解:

$2^3\times 5^1\times {\mathrm{504987451}}^1$

素因数の和:504987462

約数の個数: 16

約数和(自身を含む): 45448870680

約数和(自身を除く): 25249372640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 504987451, 1009974902, 2019949804, 2524937255, 4039899608, 5049874510, 10099749020, 20199498040]

約数ペア:

[(1, 20199498040), (2, 10099749020), (4, 5049874510), (5, 4039899608), (8, 2524937255), (10, 2019949804), (20, 1009974902), (40, 504987451)]