20761775480

素因数分解:

$2^3\times 5^1\times {\mathrm{519044387}}^1$

素因数の和:519044398

約数の個数: 16

約数和(自身を含む): 46713994920

約数和(自身を除く): 25952219440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 519044387, 1038088774, 2076177548, 2595221935, 4152355096, 5190443870, 10380887740, 20761775480]

約数ペア:

[(1, 20761775480), (2, 10380887740), (4, 5190443870), (5, 4152355096), (8, 2595221935), (10, 2076177548), (20, 1038088774), (40, 519044387)]