20198538680

素因数分解:

$2^3\times 5^1\times {\mathrm{504963467}}^1$

素因数の和:504963478

約数の個数: 16

約数和(自身を含む): 45446712120

約数和(自身を除く): 25248173440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 504963467, 1009926934, 2019853868, 2524817335, 4039707736, 5049634670, 10099269340, 20198538680]

約数ペア:

[(1, 20198538680), (2, 10099269340), (4, 5049634670), (5, 4039707736), (8, 2524817335), (10, 2019853868), (20, 1009926934), (40, 504963467)]