78315440

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{107}}^1\times {\mathrm{1307}}^1$

素因数の和:1434

約数の個数: 80

約数和(自身を含む): 210200832

約数和(自身を除く): 131885392

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 107, 112, 140, 214, 280, 428, 535, 560, 749, 856, 1070, 1307, 1498, 1712, 2140, 2614, 2996, 3745, 4280, 5228, 5992, 6535, 7490, 8560, 9149, 10456, 11984, 13070, 14980, 18298, 20912, 26140, 29960, 36596, 45745, 52280, 59920, 73192, 91490, 104560, 139849, 146384, 182980, 279698, 365960, 559396, 699245, 731920, 978943, 1118792, 1398490, 1957886, 2237584, 2796980, 3915772, 4894715, 5593960, 7831544, 9789430, 11187920, 15663088, 19578860, 39157720, 78315440]

約数ペア:

[(1, 78315440), (2, 39157720), (4, 19578860), (5, 15663088), (7, 11187920), (8, 9789430), (10, 7831544), (14, 5593960), (16, 4894715), (20, 3915772), (28, 2796980), (35, 2237584), (40, 1957886), (56, 1398490), (70, 1118792), (80, 978943), (107, 731920), (112, 699245), (140, 559396), (214, 365960), (280, 279698), (428, 182980), (535, 146384), (560, 139849), (749, 104560), (856, 91490), (1070, 73192), (1307, 59920), (1498, 52280), (1712, 45745), (2140, 36596), (2614, 29960), (2996, 26140), (3745, 20912), (4280, 18298), (5228, 14980), (5992, 13070), (6535, 11984), (7490, 10456), (8560, 9149)]