18908660

素因数分解:

$2^2\times 5^1\times {\mathrm{937}}^1\times {\mathrm{1009}}^1$

素因数の和:1955

約数の個数: 24

約数和(自身を含む): 39789960

約数和(自身を除く): 20881300

約数列:

[1, 2, 4, 5, 10, 20, 937, 1009, 1874, 2018, 3748, 4036, 4685, 5045, 9370, 10090, 18740, 20180, 945433, 1890866, 3781732, 4727165, 9454330, 18908660]

約数ペア:

[(1, 18908660), (2, 9454330), (4, 4727165), (5, 3781732), (10, 1890866), (20, 945433), (937, 20180), (1009, 18740), (1874, 10090), (2018, 9370), (3748, 5045), (4036, 4685)]