81168080

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{193}}^1\times {\mathrm{751}}^1$

素因数の和:964

約数の個数: 80

約数和(自身を含む): 217081344

約数和(自身を除く): 135913264

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 193, 280, 386, 560, 751, 772, 965, 1351, 1502, 1544, 1930, 2702, 3004, 3088, 3755, 3860, 5257, 5404, 6008, 6755, 7510, 7720, 10514, 10808, 12016, 13510, 15020, 15440, 21028, 21616, 26285, 27020, 30040, 42056, 52570, 54040, 60080, 84112, 105140, 108080, 144943, 210280, 289886, 420560, 579772, 724715, 1014601, 1159544, 1449430, 2029202, 2319088, 2898860, 4058404, 5073005, 5797720, 8116808, 10146010, 11595440, 16233616, 20292020, 40584040, 81168080]

約数ペア:

[(1, 81168080), (2, 40584040), (4, 20292020), (5, 16233616), (7, 11595440), (8, 10146010), (10, 8116808), (14, 5797720), (16, 5073005), (20, 4058404), (28, 2898860), (35, 2319088), (40, 2029202), (56, 1449430), (70, 1159544), (80, 1014601), (112, 724715), (140, 579772), (193, 420560), (280, 289886), (386, 210280), (560, 144943), (751, 108080), (772, 105140), (965, 84112), (1351, 60080), (1502, 54040), (1544, 52570), (1930, 42056), (2702, 30040), (3004, 27020), (3088, 26285), (3755, 21616), (3860, 21028), (5257, 15440), (5404, 15020), (6008, 13510), (6755, 12016), (7510, 10808), (7720, 10514)]