865322020

素因数分解:

$2^2\times 5^1\times {\mathrm{43266101}}^1$

素因数の和:43266110

約数の個数: 12

約数和(自身を含む): 1817176284

約数和(自身を除く): 951854264

約数列:

[1, 2, 4, 5, 10, 20, 43266101, 86532202, 173064404, 216330505, 432661010, 865322020]

約数ペア:

[(1, 865322020), (2, 432661010), (4, 216330505), (5, 173064404), (10, 86532202), (20, 43266101)]