67385980

素因数分解:

$2^2\times 5^1\times {\mathrm{109}}^1\times {\mathrm{30911}}^1$

素因数の和:31029

約数の個数: 24

約数和(自身を含む): 142813440

約数和(自身を除く): 75427460

約数列:

[1, 2, 4, 5, 10, 20, 109, 218, 436, 545, 1090, 2180, 30911, 61822, 123644, 154555, 309110, 618220, 3369299, 6738598, 13477196, 16846495, 33692990, 67385980]

約数ペア:

[(1, 67385980), (2, 33692990), (4, 16846495), (5, 13477196), (10, 6738598), (20, 3369299), (109, 618220), (218, 309110), (436, 154555), (545, 123644), (1090, 61822), (2180, 30911)]