16661375

素因数分解:

$5^3\times {\mathrm{41}}^1\times {\mathrm{3251}}^1$

素因数の和:3307

約数の個数: 16

約数和(自身を含む): 21307104

約数和(自身を除く): 4645729

約数列:

[1, 5, 25, 41, 125, 205, 1025, 3251, 5125, 16255, 81275, 133291, 406375, 666455, 3332275, 16661375]

約数ペア:

[(1, 16661375), (5, 3332275), (25, 666455), (41, 406375), (125, 133291), (205, 81275), (1025, 16255), (3251, 5125)]