68969020

素因数分解:

$2^2\times 5^1\times {\mathrm{139}}^1\times {\mathrm{24809}}^1$

素因数の和:24957

約数の個数: 24

約数和(自身を含む): 145882800

約数和(自身を除く): 76913780

約数列:

[1, 2, 4, 5, 10, 20, 139, 278, 556, 695, 1390, 2780, 24809, 49618, 99236, 124045, 248090, 496180, 3448451, 6896902, 13793804, 17242255, 34484510, 68969020]

約数ペア:

[(1, 68969020), (2, 34484510), (4, 17242255), (5, 13793804), (10, 6896902), (20, 3448451), (139, 496180), (278, 248090), (556, 124045), (695, 99236), (1390, 49618), (2780, 24809)]