15964120

素因数分解:

$2^3\times 5^1\times {\mathrm{317}}^1\times {\mathrm{1259}}^1$

素因数の和:1587

約数の個数: 32

約数和(自身を含む): 36061200

約数和(自身を除く): 20097080

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 317, 634, 1259, 1268, 1585, 2518, 2536, 3170, 5036, 6295, 6340, 10072, 12590, 12680, 25180, 50360, 399103, 798206, 1596412, 1995515, 3192824, 3991030, 7982060, 15964120]

約数ペア:

[(1, 15964120), (2, 7982060), (4, 3991030), (5, 3192824), (8, 1995515), (10, 1596412), (20, 798206), (40, 399103), (317, 50360), (634, 25180), (1259, 12680), (1268, 12590), (1585, 10072), (2518, 6340), (2536, 6295), (3170, 5036)]