20512570

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{5441}}^1$

素因数の和:5490

約数の個数: 32

約数和(自身を含む): 41141520

約数和(自身を除く): 20628950

約数列:

[1, 2, 5, 10, 13, 26, 29, 58, 65, 130, 145, 290, 377, 754, 1885, 3770, 5441, 10882, 27205, 54410, 70733, 141466, 157789, 315578, 353665, 707330, 788945, 1577890, 2051257, 4102514, 10256285, 20512570]

約数ペア:

[(1, 20512570), (2, 10256285), (5, 4102514), (10, 2051257), (13, 1577890), (26, 788945), (29, 707330), (58, 353665), (65, 315578), (130, 157789), (145, 141466), (290, 70733), (377, 54410), (754, 27205), (1885, 10882), (3770, 5441)]