7850025

素因数分解:

$3^2\times 5^2\times {\mathrm{139}}^1\times {\mathrm{251}}^1$

素因数の和:406

約数の個数: 36

約数和(自身を含む): 14217840

約数和(自身を除く): 6367815

約数列:

[1, 3, 5, 9, 15, 25, 45, 75, 139, 225, 251, 417, 695, 753, 1251, 1255, 2085, 2259, 3475, 3765, 6255, 6275, 10425, 11295, 18825, 31275, 34889, 56475, 104667, 174445, 314001, 523335, 872225, 1570005, 2616675, 7850025]

約数ペア:

[(1, 7850025), (3, 2616675), (5, 1570005), (9, 872225), (15, 523335), (25, 314001), (45, 174445), (75, 104667), (139, 56475), (225, 34889), (251, 31275), (417, 18825), (695, 11295), (753, 10425), (1251, 6275), (1255, 6255), (2085, 3765), (2259, 3475)]