81105080

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{6163}}^1$

素因数の和:6228

約数の個数: 64

約数和(自身を含む): 213027840

約数和(自身を除く): 131922760

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 47, 56, 70, 94, 140, 188, 235, 280, 329, 376, 470, 658, 940, 1316, 1645, 1880, 2632, 3290, 6163, 6580, 12326, 13160, 24652, 30815, 43141, 49304, 61630, 86282, 123260, 172564, 215705, 246520, 289661, 345128, 431410, 579322, 862820, 1158644, 1448305, 1725640, 2027627, 2317288, 2896610, 4055254, 5793220, 8110508, 10138135, 11586440, 16221016, 20276270, 40552540, 81105080]

約数ペア:

[(1, 81105080), (2, 40552540), (4, 20276270), (5, 16221016), (7, 11586440), (8, 10138135), (10, 8110508), (14, 5793220), (20, 4055254), (28, 2896610), (35, 2317288), (40, 2027627), (47, 1725640), (56, 1448305), (70, 1158644), (94, 862820), (140, 579322), (188, 431410), (235, 345128), (280, 289661), (329, 246520), (376, 215705), (470, 172564), (658, 123260), (940, 86282), (1316, 61630), (1645, 49304), (1880, 43141), (2632, 30815), (3290, 24652), (6163, 13160), (6580, 12326)]