128564905

素因数分解:

$5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{118493}}^1$

素因数の和:118536

約数の個数: 16

約数和(自身を含む): 182006784

約数和(自身を除く): 53441879

約数列:

[1, 5, 7, 31, 35, 155, 217, 1085, 118493, 592465, 829451, 3673283, 4147255, 18366415, 25712981, 128564905]

約数ペア:

[(1, 128564905), (5, 25712981), (7, 18366415), (31, 4147255), (35, 3673283), (155, 829451), (217, 592465), (1085, 118493)]