2539240

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{199}}^1$

素因数の和:250

約数の個数: 64

約数和(自身を含む): 6480000

約数和(自身を除く): 3940760

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 29, 40, 44, 55, 58, 88, 110, 116, 145, 199, 220, 232, 290, 319, 398, 440, 580, 638, 796, 995, 1160, 1276, 1592, 1595, 1990, 2189, 2552, 3190, 3980, 4378, 5771, 6380, 7960, 8756, 10945, 11542, 12760, 17512, 21890, 23084, 28855, 43780, 46168, 57710, 63481, 87560, 115420, 126962, 230840, 253924, 317405, 507848, 634810, 1269620, 2539240]

約数ペア:

[(1, 2539240), (2, 1269620), (4, 634810), (5, 507848), (8, 317405), (10, 253924), (11, 230840), (20, 126962), (22, 115420), (29, 87560), (40, 63481), (44, 57710), (55, 46168), (58, 43780), (88, 28855), (110, 23084), (116, 21890), (145, 17512), (199, 12760), (220, 11542), (232, 10945), (290, 8756), (319, 7960), (398, 6380), (440, 5771), (580, 4378), (638, 3980), (796, 3190), (995, 2552), (1160, 2189), (1276, 1990), (1592, 1595)]