72687440

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{293}}^1\times {\mathrm{443}}^1$

素因数の和:756

約数の個数: 80

約数和(自身を含む): 194237568

約数和(自身を除く): 121550128

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 293, 443, 560, 586, 886, 1172, 1465, 1772, 2051, 2215, 2344, 2930, 3101, 3544, 4102, 4430, 4688, 5860, 6202, 7088, 8204, 8860, 10255, 11720, 12404, 15505, 16408, 17720, 20510, 23440, 24808, 31010, 32816, 35440, 41020, 49616, 62020, 82040, 124040, 129799, 164080, 248080, 259598, 519196, 648995, 908593, 1038392, 1297990, 1817186, 2076784, 2595980, 3634372, 4542965, 5191960, 7268744, 9085930, 10383920, 14537488, 18171860, 36343720, 72687440]

約数ペア:

[(1, 72687440), (2, 36343720), (4, 18171860), (5, 14537488), (7, 10383920), (8, 9085930), (10, 7268744), (14, 5191960), (16, 4542965), (20, 3634372), (28, 2595980), (35, 2076784), (40, 1817186), (56, 1297990), (70, 1038392), (80, 908593), (112, 648995), (140, 519196), (280, 259598), (293, 248080), (443, 164080), (560, 129799), (586, 124040), (886, 82040), (1172, 62020), (1465, 49616), (1772, 41020), (2051, 35440), (2215, 32816), (2344, 31010), (2930, 24808), (3101, 23440), (3544, 20510), (4102, 17720), (4430, 16408), (4688, 15505), (5860, 12404), (6202, 11720), (7088, 10255), (8204, 8860)]