1386275

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{71}}^2$

素因数の和:163

約数の個数: 18

約数和(自身を含む): 1902036

約数和(自身を除く): 515761

約数列:

[1, 5, 11, 25, 55, 71, 275, 355, 781, 1775, 3905, 5041, 19525, 25205, 55451, 126025, 277255, 1386275]

約数ペア:

[(1, 1386275), (5, 277255), (11, 126025), (25, 55451), (55, 25205), (71, 19525), (275, 5041), (355, 3905), (781, 1775)]