6640180

素因数分解:

$2^2\times 5^1\times {\mathrm{332009}}^1$

素因数の和:332018

約数の個数: 12

約数和(自身を含む): 13944420

約数和(自身を除く): 7304240

約数列:

[1, 2, 4, 5, 10, 20, 332009, 664018, 1328036, 1660045, 3320090, 6640180]

約数ペア:

[(1, 6640180), (2, 3320090), (4, 1660045), (5, 1328036), (10, 664018), (20, 332009)]