3998960

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{193}}^1$

素因数の和:250

約数の個数: 80

約数和(自身を含む): 10969536

約数和(自身を除く): 6970576

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 37, 40, 56, 70, 74, 80, 112, 140, 148, 185, 193, 259, 280, 296, 370, 386, 518, 560, 592, 740, 772, 965, 1036, 1295, 1351, 1480, 1544, 1930, 2072, 2590, 2702, 2960, 3088, 3860, 4144, 5180, 5404, 6755, 7141, 7720, 10360, 10808, 13510, 14282, 15440, 20720, 21616, 27020, 28564, 35705, 49987, 54040, 57128, 71410, 99974, 108080, 114256, 142820, 199948, 249935, 285640, 399896, 499870, 571280, 799792, 999740, 1999480, 3998960]

約数ペア:

[(1, 3998960), (2, 1999480), (4, 999740), (5, 799792), (7, 571280), (8, 499870), (10, 399896), (14, 285640), (16, 249935), (20, 199948), (28, 142820), (35, 114256), (37, 108080), (40, 99974), (56, 71410), (70, 57128), (74, 54040), (80, 49987), (112, 35705), (140, 28564), (148, 27020), (185, 21616), (193, 20720), (259, 15440), (280, 14282), (296, 13510), (370, 10808), (386, 10360), (518, 7720), (560, 7141), (592, 6755), (740, 5404), (772, 5180), (965, 4144), (1036, 3860), (1295, 3088), (1351, 2960), (1480, 2702), (1544, 2590), (1930, 2072)]