199048820

素因数分解:

$2^2\times 5^1\times {\mathrm{9952441}}^1$

素因数の和:9952450

約数の個数: 12

約数和(自身を含む): 418002564

約数和(自身を除く): 218953744

約数列:

[1, 2, 4, 5, 10, 20, 9952441, 19904882, 39809764, 49762205, 99524410, 199048820]

約数ペア:

[(1, 199048820), (2, 99524410), (4, 49762205), (5, 39809764), (10, 19904882), (20, 9952441)]