13888280

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{193}}^1\times {\mathrm{257}}^1$

素因数の和:468

約数の個数: 64

約数和(自身を含む): 36037440

約数和(自身を除く): 22149160

約数列:

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

約数ペア:

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