20195520

素因数分解:

$2^6\times 3^1\times 5^1\times {\mathrm{109}}^1\times {\mathrm{193}}^1$

素因数の和:322

約数の個数: 112

約数和(自身を含む): 65044320

約数和(自身を除く): 44848800

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 64, 80, 96, 109, 120, 160, 192, 193, 218, 240, 320, 327, 386, 436, 480, 545, 579, 654, 772, 872, 960, 965, 1090, 1158, 1308, 1544, 1635, 1744, 1930, 2180, 2316, 2616, 2895, 3088, 3270, 3488, 3860, 4360, 4632, 5232, 5790, 6176, 6540, 6976, 7720, 8720, 9264, 10464, 11580, 12352, 13080, 15440, 17440, 18528, 20928, 21037, 23160, 26160, 30880, 34880, 37056, 42074, 46320, 52320, 61760, 63111, 84148, 92640, 104640, 105185, 126222, 168296, 185280, 210370, 252444, 315555, 336592, 420740, 504888, 631110, 673184, 841480, 1009776, 1262220, 1346368, 1682960, 2019552, 2524440, 3365920, 4039104, 5048880, 6731840, 10097760, 20195520]

約数ペア:

[(1, 20195520), (2, 10097760), (3, 6731840), (4, 5048880), (5, 4039104), (6, 3365920), (8, 2524440), (10, 2019552), (12, 1682960), (15, 1346368), (16, 1262220), (20, 1009776), (24, 841480), (30, 673184), (32, 631110), (40, 504888), (48, 420740), (60, 336592), (64, 315555), (80, 252444), (96, 210370), (109, 185280), (120, 168296), (160, 126222), (192, 105185), (193, 104640), (218, 92640), (240, 84148), (320, 63111), (327, 61760), (386, 52320), (436, 46320), (480, 42074), (545, 37056), (579, 34880), (654, 30880), (772, 26160), (872, 23160), (960, 21037), (965, 20928), (1090, 18528), (1158, 17440), (1308, 15440), (1544, 13080), (1635, 12352), (1744, 11580), (1930, 10464), (2180, 9264), (2316, 8720), (2616, 7720), (2895, 6976), (3088, 6540), (3270, 6176), (3488, 5790), (3860, 5232), (4360, 4632)]