81261585

素因数分解:

$3^2\times 5^1\times {\mathrm{59}}^1\times {\mathrm{127}}^1\times {\mathrm{241}}^1$

素因数の和:438

約数の個数: 48

約数和(自身を含む): 144967680

約数和(自身を除く): 63706095

約数列:

[1, 3, 5, 9, 15, 45, 59, 127, 177, 241, 295, 381, 531, 635, 723, 885, 1143, 1205, 1905, 2169, 2655, 3615, 5715, 7493, 10845, 14219, 22479, 30607, 37465, 42657, 67437, 71095, 91821, 112395, 127971, 153035, 213285, 275463, 337185, 459105, 639855, 1377315, 1805813, 5417439, 9029065, 16252317, 27087195, 81261585]

約数ペア:

[(1, 81261585), (3, 27087195), (5, 16252317), (9, 9029065), (15, 5417439), (45, 1805813), (59, 1377315), (127, 639855), (177, 459105), (241, 337185), (295, 275463), (381, 213285), (531, 153035), (635, 127971), (723, 112395), (885, 91821), (1143, 71095), (1205, 67437), (1905, 42657), (2169, 37465), (2655, 30607), (3615, 22479), (5715, 14219), (7493, 10845)]