9997904450

素因数分解:

$2^1\times 5^2\times {\mathrm{199958089}}^1$

素因数の和:199958101

約数の個数: 12

約数和(自身を含む): 18596102370

約数和(自身を除く): 8598197920

約数列:

[1, 2, 5, 10, 25, 50, 199958089, 399916178, 999790445, 1999580890, 4998952225, 9997904450]

約数ペア:

[(1, 9997904450), (2, 4998952225), (5, 1999580890), (10, 999790445), (25, 399916178), (50, 199958089)]