65316080

素因数分解:

$2^4\times 5^1\times {\mathrm{816451}}^1$

素因数の和:816464

約数の個数: 20

約数和(自身を含む): 151860072

約数和(自身を除く): 86543992

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 816451, 1632902, 3265804, 4082255, 6531608, 8164510, 13063216, 16329020, 32658040, 65316080]

約数ペア:

[(1, 65316080), (2, 32658040), (4, 16329020), (5, 13063216), (8, 8164510), (10, 6531608), (16, 4082255), (20, 3265804), (40, 1632902), (80, 816451)]