20343275

素因数分解:

$5^2\times {\mathrm{71}}^1\times {\mathrm{73}}^1\times {\mathrm{157}}^1$

素因数の和:311

約数の個数: 24

約数和(自身を含む): 26096544

約数和(自身を除く): 5753269

約数列:

[1, 5, 25, 71, 73, 157, 355, 365, 785, 1775, 1825, 3925, 5183, 11147, 11461, 25915, 55735, 57305, 129575, 278675, 286525, 813731, 4068655, 20343275]

約数ペア:

[(1, 20343275), (5, 4068655), (25, 813731), (71, 286525), (73, 278675), (157, 129575), (355, 57305), (365, 55735), (785, 25915), (1775, 11461), (1825, 11147), (3925, 5183)]