80531375

素因数分解:

$5^3\times {\mathrm{631}}^1\times {\mathrm{1021}}^1$

素因数の和:1667

約数の個数: 16

約数和(自身を含む): 100761024

約数和(自身を除く): 20229649

約数列:

[1, 5, 25, 125, 631, 1021, 3155, 5105, 15775, 25525, 78875, 127625, 644251, 3221255, 16106275, 80531375]

約数ペア:

[(1, 80531375), (5, 16106275), (25, 3221255), (125, 644251), (631, 127625), (1021, 78875), (3155, 25525), (5105, 15775)]