12778975

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{1499}}^1$

素因数の和:1551

約数の個数: 24

約数和(自身を含む): 17856000

約数和(自身を除く): 5077025

約数列:

[1, 5, 11, 25, 31, 55, 155, 275, 341, 775, 1499, 1705, 7495, 8525, 16489, 37475, 46469, 82445, 232345, 412225, 511159, 1161725, 2555795, 12778975]

約数ペア:

[(1, 12778975), (5, 2555795), (11, 1161725), (25, 511159), (31, 412225), (55, 232345), (155, 82445), (275, 46469), (341, 37475), (775, 16489), (1499, 8525), (1705, 7495)]