78567440

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{307}}^1\times {\mathrm{457}}^1$

素因数の和:784

約数の個数: 80

約数和(自身を含む): 209903232

約数和(自身を除く): 131335792

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 307, 457, 560, 614, 914, 1228, 1535, 1828, 2149, 2285, 2456, 3070, 3199, 3656, 4298, 4570, 4912, 6140, 6398, 7312, 8596, 9140, 10745, 12280, 12796, 15995, 17192, 18280, 21490, 24560, 25592, 31990, 34384, 36560, 42980, 51184, 63980, 85960, 127960, 140299, 171920, 255920, 280598, 561196, 701495, 982093, 1122392, 1402990, 1964186, 2244784, 2805980, 3928372, 4910465, 5611960, 7856744, 9820930, 11223920, 15713488, 19641860, 39283720, 78567440]

約数ペア:

[(1, 78567440), (2, 39283720), (4, 19641860), (5, 15713488), (7, 11223920), (8, 9820930), (10, 7856744), (14, 5611960), (16, 4910465), (20, 3928372), (28, 2805980), (35, 2244784), (40, 1964186), (56, 1402990), (70, 1122392), (80, 982093), (112, 701495), (140, 561196), (280, 280598), (307, 255920), (457, 171920), (560, 140299), (614, 127960), (914, 85960), (1228, 63980), (1535, 51184), (1828, 42980), (2149, 36560), (2285, 34384), (2456, 31990), (3070, 25592), (3199, 24560), (3656, 21490), (4298, 18280), (4570, 17192), (4912, 15995), (6140, 12796), (6398, 12280), (7312, 10745), (8596, 9140)]