8939975

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{59}}^1$

素因数の和:128

約数の個数: 48

約数和(自身を含む): 13392000

約数和(自身を除く): 4452025

約数列:

[1, 5, 11, 19, 25, 29, 55, 59, 95, 145, 209, 275, 295, 319, 475, 551, 649, 725, 1045, 1121, 1475, 1595, 1711, 2755, 3245, 5225, 5605, 6061, 7975, 8555, 12331, 13775, 16225, 18821, 28025, 30305, 32509, 42775, 61655, 94105, 151525, 162545, 308275, 357599, 470525, 812725, 1787995, 8939975]

約数ペア:

[(1, 8939975), (5, 1787995), (11, 812725), (19, 470525), (25, 357599), (29, 308275), (55, 162545), (59, 151525), (95, 94105), (145, 61655), (209, 42775), (275, 32509), (295, 30305), (319, 28025), (475, 18821), (551, 16225), (649, 13775), (725, 12331), (1045, 8555), (1121, 7975), (1475, 6061), (1595, 5605), (1711, 5225), (2755, 3245)]