77309020

素因数分解:

$2^2\times 5^1\times {\mathrm{139}}^1\times {\mathrm{27809}}^1$

素因数の和:27957

約数の個数: 24

約数和(自身を含む): 163522800

約数和(自身を除く): 86213780

約数列:

[1, 2, 4, 5, 10, 20, 139, 278, 556, 695, 1390, 2780, 27809, 55618, 111236, 139045, 278090, 556180, 3865451, 7730902, 15461804, 19327255, 38654510, 77309020]

約数ペア:

[(1, 77309020), (2, 38654510), (4, 19327255), (5, 15461804), (10, 7730902), (20, 3865451), (139, 556180), (278, 278090), (556, 139045), (695, 111236), (1390, 55618), (2780, 27809)]