1285394020

素因数分解:

$2^2\times 5^1\times {\mathrm{1051}}^1\times {\mathrm{61151}}^1$

素因数の和:62211

約数の個数: 24

約数和(自身を含む): 2701939968

約数和(自身を除く): 1416545948

約数列:

[1, 2, 4, 5, 10, 20, 1051, 2102, 4204, 5255, 10510, 21020, 61151, 122302, 244604, 305755, 611510, 1223020, 64269701, 128539402, 257078804, 321348505, 642697010, 1285394020]

約数ペア:

[(1, 1285394020), (2, 642697010), (4, 321348505), (5, 257078804), (10, 128539402), (20, 64269701), (1051, 1223020), (2102, 611510), (4204, 305755), (5255, 244604), (10510, 122302), (21020, 61151)]