20398510

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{185441}}^1$

素因数の和:185459

約数の個数: 16

約数和(自身を含む): 40055472

約数和(自身を除く): 19656962

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 185441, 370882, 927205, 1854410, 2039851, 4079702, 10199255, 20398510]

約数ペア:

[(1, 20398510), (2, 10199255), (5, 4079702), (10, 2039851), (11, 1854410), (22, 927205), (55, 370882), (110, 185441)]