19931375

素因数分解:

$5^3\times {\mathrm{317}}^1\times {\mathrm{503}}^1$

素因数の和:835

約数の個数: 16

約数和(自身を含む): 25002432

約数和(自身を除く): 5071057

約数列:

[1, 5, 25, 125, 317, 503, 1585, 2515, 7925, 12575, 39625, 62875, 159451, 797255, 3986275, 19931375]

約数ペア:

[(1, 19931375), (5, 3986275), (25, 797255), (125, 159451), (317, 62875), (503, 39625), (1585, 12575), (2515, 7925)]