20479870

素因数分解:

$2^1\times 5^1\times {\mathrm{37}}^1\times {\mathrm{55351}}^1$

素因数の和:55395

約数の個数: 16

約数和(自身を含む): 37860768

約数和(自身を除く): 17380898

約数列:

[1, 2, 5, 10, 37, 74, 185, 370, 55351, 110702, 276755, 553510, 2047987, 4095974, 10239935, 20479870]

約数ペア:

[(1, 20479870), (2, 10239935), (5, 4095974), (10, 2047987), (37, 553510), (74, 276755), (185, 110702), (370, 55351)]