201998624090

素因数分解:

$2^1\times 5^1\times {\mathrm{521}}^1\times {\mathrm{38771329}}^1$

素因数の和:38771857

約数の個数: 16

約数和(自身を含む): 364295416680

約数和(自身を除く): 162296792590

約数列:

[1, 2, 5, 10, 521, 1042, 2605, 5210, 38771329, 77542658, 193856645, 387713290, 20199862409, 40399724818, 100999312045, 201998624090]

約数ペア:

[(1, 201998624090), (2, 100999312045), (5, 40399724818), (10, 20199862409), (521, 387713290), (1042, 193856645), (2605, 77542658), (5210, 38771329)]