38991100

素因数分解:

$2^2\times 5^2\times {\mathrm{389911}}^1$

素因数の和:389925

約数の個数: 18

約数和(自身を含む): 84610904

約数和(自身を除く): 45619804

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 389911, 779822, 1559644, 1949555, 3899110, 7798220, 9747775, 19495550, 38991100]

約数ペア:

[(1, 38991100), (2, 19495550), (4, 9747775), (5, 7798220), (10, 3899110), (20, 1949555), (25, 1559644), (50, 779822), (100, 389911)]