61895960

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{443}}^1\times {\mathrm{499}}^1$

素因数の和:960

約数の個数: 64

約数和(自身を含む): 159840000

約数和(自身を除く): 97944040

約数列:

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

約数ペア:

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