80951920

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{107}}^1\times {\mathrm{193}}^1$

素因数の和:327

約数の個数: 120

約数和(自身を含む): 222133104

約数和(自身を除く): 141181184

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 49, 56, 70, 80, 98, 107, 112, 140, 193, 196, 214, 245, 280, 386, 392, 428, 490, 535, 560, 749, 772, 784, 856, 965, 980, 1070, 1351, 1498, 1544, 1712, 1930, 1960, 2140, 2702, 2996, 3088, 3745, 3860, 3920, 4280, 5243, 5404, 5992, 6755, 7490, 7720, 8560, 9457, 10486, 10808, 11984, 13510, 14980, 15440, 18914, 20651, 20972, 21616, 26215, 27020, 29960, 37828, 41302, 41944, 47285, 52430, 54040, 59920, 75656, 82604, 83888, 94570, 103255, 104860, 108080, 144557, 151312, 165208, 189140, 206510, 209720, 289114, 330416, 378280, 413020, 419440, 578228, 722785, 756560, 826040, 1011899, 1156456, 1445570, 1652080, 2023798, 2312912, 2891140, 4047596, 5059495, 5782280, 8095192, 10118990, 11564560, 16190384, 20237980, 40475960, 80951920]

約数ペア:

[(1, 80951920), (2, 40475960), (4, 20237980), (5, 16190384), (7, 11564560), (8, 10118990), (10, 8095192), (14, 5782280), (16, 5059495), (20, 4047596), (28, 2891140), (35, 2312912), (40, 2023798), (49, 1652080), (56, 1445570), (70, 1156456), (80, 1011899), (98, 826040), (107, 756560), (112, 722785), (140, 578228), (193, 419440), (196, 413020), (214, 378280), (245, 330416), (280, 289114), (386, 209720), (392, 206510), (428, 189140), (490, 165208), (535, 151312), (560, 144557), (749, 108080), (772, 104860), (784, 103255), (856, 94570), (965, 83888), (980, 82604), (1070, 75656), (1351, 59920), (1498, 54040), (1544, 52430), (1712, 47285), (1930, 41944), (1960, 41302), (2140, 37828), (2702, 29960), (2996, 27020), (3088, 26215), (3745, 21616), (3860, 20972), (3920, 20651), (4280, 18914), (5243, 15440), (5404, 14980), (5992, 13510), (6755, 11984), (7490, 10808), (7720, 10486), (8560, 9457)]