2781680

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{109}}^1$

素因数の和:162

約数の個数: 80

約数和(自身を含む): 7365600

約数和(自身を除く): 4583920

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 29, 40, 44, 55, 58, 80, 88, 109, 110, 116, 145, 176, 218, 220, 232, 290, 319, 436, 440, 464, 545, 580, 638, 872, 880, 1090, 1160, 1199, 1276, 1595, 1744, 2180, 2320, 2398, 2552, 3161, 3190, 4360, 4796, 5104, 5995, 6322, 6380, 8720, 9592, 11990, 12644, 12760, 15805, 19184, 23980, 25288, 25520, 31610, 34771, 47960, 50576, 63220, 69542, 95920, 126440, 139084, 173855, 252880, 278168, 347710, 556336, 695420, 1390840, 2781680]

約数ペア:

[(1, 2781680), (2, 1390840), (4, 695420), (5, 556336), (8, 347710), (10, 278168), (11, 252880), (16, 173855), (20, 139084), (22, 126440), (29, 95920), (40, 69542), (44, 63220), (55, 50576), (58, 47960), (80, 34771), (88, 31610), (109, 25520), (110, 25288), (116, 23980), (145, 19184), (176, 15805), (218, 12760), (220, 12644), (232, 11990), (290, 9592), (319, 8720), (436, 6380), (440, 6322), (464, 5995), (545, 5104), (580, 4796), (638, 4360), (872, 3190), (880, 3161), (1090, 2552), (1160, 2398), (1199, 2320), (1276, 2180), (1595, 1744)]