20136665

素因数分解:

$5^1\times {\mathrm{71}}^1\times {\mathrm{131}}^1\times {\mathrm{433}}^1$

素因数の和:640

約数の個数: 16

約数和(自身を含む): 24748416

約数和(自身を除く): 4611751

約数列:

[1, 5, 71, 131, 355, 433, 655, 2165, 9301, 30743, 46505, 56723, 153715, 283615, 4027333, 20136665]

約数ペア:

[(1, 20136665), (5, 4027333), (71, 283615), (131, 153715), (355, 56723), (433, 46505), (655, 30743), (2165, 9301)]