20512382960

素因数分解:

$2^4\times 5^1\times {\mathrm{47}}^1\times {\mathrm{1427}}^1\times {\mathrm{3823}}^1$

素因数の和:5310

約数の個数: 80

約数和(自身を含む): 48752879616

約数和(自身を除く): 28240496656

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 47, 80, 94, 188, 235, 376, 470, 752, 940, 1427, 1880, 2854, 3760, 3823, 5708, 7135, 7646, 11416, 14270, 15292, 19115, 22832, 28540, 30584, 38230, 57080, 61168, 67069, 76460, 114160, 134138, 152920, 179681, 268276, 305840, 335345, 359362, 536552, 670690, 718724, 898405, 1073104, 1341380, 1437448, 1796810, 2682760, 2874896, 3593620, 5365520, 5455421, 7187240, 10910842, 14374480, 21821684, 27277105, 43643368, 54554210, 87286736, 109108420, 218216840, 256404787, 436433680, 512809574, 1025619148, 1282023935, 2051238296, 2564047870, 4102476592, 5128095740, 10256191480, 20512382960]

約数ペア:

[(1, 20512382960), (2, 10256191480), (4, 5128095740), (5, 4102476592), (8, 2564047870), (10, 2051238296), (16, 1282023935), (20, 1025619148), (40, 512809574), (47, 436433680), (80, 256404787), (94, 218216840), (188, 109108420), (235, 87286736), (376, 54554210), (470, 43643368), (752, 27277105), (940, 21821684), (1427, 14374480), (1880, 10910842), (2854, 7187240), (3760, 5455421), (3823, 5365520), (5708, 3593620), (7135, 2874896), (7646, 2682760), (11416, 1796810), (14270, 1437448), (15292, 1341380), (19115, 1073104), (22832, 898405), (28540, 718724), (30584, 670690), (38230, 536552), (57080, 359362), (61168, 335345), (67069, 305840), (76460, 268276), (114160, 179681), (134138, 152920)]