215564975

素因数分解:

$5^2\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{15649}}^1$

素因数の和:15707

約数の個数: 24

約数和(自身を含む): 291090000

約数和(自身を除く): 75525025

約数列:

[1, 5, 19, 25, 29, 95, 145, 475, 551, 725, 2755, 13775, 15649, 78245, 297331, 391225, 453821, 1486655, 2269105, 7433275, 8622599, 11345525, 43112995, 215564975]

約数ペア:

[(1, 215564975), (5, 43112995), (19, 11345525), (25, 8622599), (29, 7433275), (95, 2269105), (145, 1486655), (475, 453821), (551, 391225), (725, 297331), (2755, 78245), (13775, 15649)]