42157375

素因数分解:

$5^3\times {\mathrm{13}}^1\times {\mathrm{25943}}^1$

素因数の和:25971

約数の個数: 16

約数和(自身を含む): 56661696

約数和(自身を除く): 14504321

約数列:

[1, 5, 13, 25, 65, 125, 325, 1625, 25943, 129715, 337259, 648575, 1686295, 3242875, 8431475, 42157375]

約数ペア:

[(1, 42157375), (5, 8431475), (13, 3242875), (25, 1686295), (65, 648575), (125, 337259), (325, 129715), (1625, 25943)]