20532080

素因数分解:

$2^4\times 5^1\times {\mathrm{256651}}^1$

素因数の和:256664

約数の個数: 20

約数和(自身を含む): 47737272

約数和(自身を除く): 27205192

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 256651, 513302, 1026604, 1283255, 2053208, 2566510, 4106416, 5133020, 10266040, 20532080]

約数ペア:

[(1, 20532080), (2, 10266040), (4, 5133020), (5, 4106416), (8, 2566510), (10, 2053208), (16, 1283255), (20, 1026604), (40, 513302), (80, 256651)]