8643020

素因数分解:

$2^2\times 5^1\times {\mathrm{139}}^1\times {\mathrm{3109}}^1$

素因数の和:3257

約数の個数: 24

約数和(自身を含む): 18286800

約数和(自身を除く): 9643780

約数列:

[1, 2, 4, 5, 10, 20, 139, 278, 556, 695, 1390, 2780, 3109, 6218, 12436, 15545, 31090, 62180, 432151, 864302, 1728604, 2160755, 4321510, 8643020]

約数ペア:

[(1, 8643020), (2, 4321510), (4, 2160755), (5, 1728604), (10, 864302), (20, 432151), (139, 62180), (278, 31090), (556, 15545), (695, 12436), (1390, 6218), (2780, 3109)]