20187041275

素因数分解:

$5^2\times {\mathrm{71}}^1\times {\mathrm{11372981}}^1$

素因数の和:11373062

約数の個数: 12

約数和(自身を含む): 25384495824

約数和(自身を除く): 5197454549

約数列:

[1, 5, 25, 71, 355, 1775, 11372981, 56864905, 284324525, 807481651, 4037408255, 20187041275]

約数ペア:

[(1, 20187041275), (5, 4037408255), (25, 807481651), (71, 284324525), (355, 56864905), (1775, 11372981)]