28571755

素因数分解:

$5^1\times {\mathrm{131}}^1\times {\mathrm{181}}^1\times {\mathrm{241}}^1$

素因数の和:558

約数の個数: 16

約数和(自身を含む): 34882848

約数和(自身を除く): 6311093

約数列:

[1, 5, 131, 181, 241, 655, 905, 1205, 23711, 31571, 43621, 118555, 157855, 218105, 5714351, 28571755]

約数ペア:

[(1, 28571755), (5, 5714351), (131, 218105), (181, 157855), (241, 118555), (655, 43621), (905, 31571), (1205, 23711)]