2728880

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{443}}^1$

素因数の和:474

約数の個数: 80

約数和(自身を含む): 7928064

約数和(自身を除く): 5199184

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 16, 20, 22, 28, 35, 40, 44, 55, 56, 70, 77, 80, 88, 110, 112, 140, 154, 176, 220, 280, 308, 385, 440, 443, 560, 616, 770, 880, 886, 1232, 1540, 1772, 2215, 3080, 3101, 3544, 4430, 4873, 6160, 6202, 7088, 8860, 9746, 12404, 15505, 17720, 19492, 24365, 24808, 31010, 34111, 35440, 38984, 48730, 49616, 62020, 68222, 77968, 97460, 124040, 136444, 170555, 194920, 248080, 272888, 341110, 389840, 545776, 682220, 1364440, 2728880]

約数ペア:

[(1, 2728880), (2, 1364440), (4, 682220), (5, 545776), (7, 389840), (8, 341110), (10, 272888), (11, 248080), (14, 194920), (16, 170555), (20, 136444), (22, 124040), (28, 97460), (35, 77968), (40, 68222), (44, 62020), (55, 49616), (56, 48730), (70, 38984), (77, 35440), (80, 34111), (88, 31010), (110, 24808), (112, 24365), (140, 19492), (154, 17720), (176, 15505), (220, 12404), (280, 9746), (308, 8860), (385, 7088), (440, 6202), (443, 6160), (560, 4873), (616, 4430), (770, 3544), (880, 3101), (886, 3080), (1232, 2215), (1540, 1772)]