259322020

素因数分解:

$2^2\times 5^1\times {\mathrm{12966101}}^1$

素因数の和:12966110

約数の個数: 12

約数和(自身を含む): 544576284

約数和(自身を除く): 285254264

約数列:

[1, 2, 4, 5, 10, 20, 12966101, 25932202, 51864404, 64830505, 129661010, 259322020]

約数ペア:

[(1, 259322020), (2, 129661010), (4, 64830505), (5, 51864404), (10, 25932202), (20, 12966101)]