123791920

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{443}}^1\times {\mathrm{499}}^1$

素因数の和:962

約数の個数: 80

約数和(自身を含む): 330336000

約数和(自身を除く): 206544080

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 443, 499, 560, 886, 998, 1772, 1996, 2215, 2495, 3101, 3493, 3544, 3992, 4430, 4990, 6202, 6986, 7088, 7984, 8860, 9980, 12404, 13972, 15505, 17465, 17720, 19960, 24808, 27944, 31010, 34930, 35440, 39920, 49616, 55888, 62020, 69860, 124040, 139720, 221057, 248080, 279440, 442114, 884228, 1105285, 1547399, 1768456, 2210570, 3094798, 3536912, 4421140, 6189596, 7736995, 8842280, 12379192, 15473990, 17684560, 24758384, 30947980, 61895960, 123791920]

約数ペア:

[(1, 123791920), (2, 61895960), (4, 30947980), (5, 24758384), (7, 17684560), (8, 15473990), (10, 12379192), (14, 8842280), (16, 7736995), (20, 6189596), (28, 4421140), (35, 3536912), (40, 3094798), (56, 2210570), (70, 1768456), (80, 1547399), (112, 1105285), (140, 884228), (280, 442114), (443, 279440), (499, 248080), (560, 221057), (886, 139720), (998, 124040), (1772, 69860), (1996, 62020), (2215, 55888), (2495, 49616), (3101, 39920), (3493, 35440), (3544, 34930), (3992, 31010), (4430, 27944), (4990, 24808), (6202, 19960), (6986, 17720), (7088, 17465), (7984, 15505), (8860, 13972), (9980, 12404)]