27776560

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{193}}^1\times {\mathrm{257}}^1$

素因数の和:470

約数の個数: 80

約数和(自身を含む): 74477376

約数和(自身を除く): 46700816

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 193, 257, 280, 386, 514, 560, 772, 965, 1028, 1285, 1351, 1544, 1799, 1930, 2056, 2570, 2702, 3088, 3598, 3860, 4112, 5140, 5404, 6755, 7196, 7720, 8995, 10280, 10808, 13510, 14392, 15440, 17990, 20560, 21616, 27020, 28784, 35980, 49601, 54040, 71960, 99202, 108080, 143920, 198404, 248005, 347207, 396808, 496010, 694414, 793616, 992020, 1388828, 1736035, 1984040, 2777656, 3472070, 3968080, 5555312, 6944140, 13888280, 27776560]

約数ペア:

[(1, 27776560), (2, 13888280), (4, 6944140), (5, 5555312), (7, 3968080), (8, 3472070), (10, 2777656), (14, 1984040), (16, 1736035), (20, 1388828), (28, 992020), (35, 793616), (40, 694414), (56, 496010), (70, 396808), (80, 347207), (112, 248005), (140, 198404), (193, 143920), (257, 108080), (280, 99202), (386, 71960), (514, 54040), (560, 49601), (772, 35980), (965, 28784), (1028, 27020), (1285, 21616), (1351, 20560), (1544, 17990), (1799, 15440), (1930, 14392), (2056, 13510), (2570, 10808), (2702, 10280), (3088, 8995), (3598, 7720), (3860, 7196), (4112, 6755), (5140, 5404)]