127788471

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{73}}^1\times {\mathrm{353}}^1$

素因数の和:480

約数の個数: 48

約数和(自身を含む): 204328800

約数和(自身を除く): 76540329

約数列:

[1, 3, 9, 19, 29, 57, 73, 87, 171, 219, 261, 353, 551, 657, 1059, 1387, 1653, 2117, 3177, 4161, 4959, 6351, 6707, 10237, 12483, 19053, 20121, 25769, 30711, 40223, 60363, 77307, 92133, 120669, 194503, 231921, 362007, 489611, 583509, 747301, 1468833, 1750527, 2241903, 4406499, 6725709, 14198719, 42596157, 127788471]

約数ペア:

[(1, 127788471), (3, 42596157), (9, 14198719), (19, 6725709), (29, 4406499), (57, 2241903), (73, 1750527), (87, 1468833), (171, 747301), (219, 583509), (261, 489611), (353, 362007), (551, 231921), (657, 194503), (1059, 120669), (1387, 92133), (1653, 77307), (2117, 60363), (3177, 40223), (4161, 30711), (4959, 25769), (6351, 20121), (6707, 19053), (10237, 12483)]