1081375

素因数分解:

$5^3\times {\mathrm{41}}^1\times {\mathrm{211}}^1$

素因数の和:267

約数の個数: 16

約数和(自身を含む): 1389024

約数和(自身を除く): 307649

約数列:

[1, 5, 25, 41, 125, 205, 211, 1025, 1055, 5125, 5275, 8651, 26375, 43255, 216275, 1081375]

約数ペア:

[(1, 1081375), (5, 216275), (25, 43255), (41, 26375), (125, 8651), (205, 5275), (211, 5125), (1025, 1055)]