388617020

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{1766441}}^1$

素因数の和:1766461

約数の個数: 24

約数和(自身を含む): 890286768

約数和(自身を除く): 501669748

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 1766441, 3532882, 7065764, 8832205, 17664410, 19430851, 35328820, 38861702, 77723404, 97154255, 194308510, 388617020]

約数ペア:

[(1, 388617020), (2, 194308510), (4, 97154255), (5, 77723404), (10, 38861702), (11, 35328820), (20, 19430851), (22, 17664410), (44, 8832205), (55, 7065764), (110, 3532882), (220, 1766441)]