81356880

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{30817}}^1$

素因数の和:30844

約数の個数: 80

約数和(自身を含む): 275143104

約数和(自身を除く): 193786224

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 16, 20, 22, 24, 30, 33, 40, 44, 48, 55, 60, 66, 80, 88, 110, 120, 132, 165, 176, 220, 240, 264, 330, 440, 528, 660, 880, 1320, 2640, 30817, 61634, 92451, 123268, 154085, 184902, 246536, 308170, 338987, 369804, 462255, 493072, 616340, 677974, 739608, 924510, 1016961, 1232680, 1355948, 1479216, 1694935, 1849020, 2033922, 2465360, 2711896, 3389870, 3698040, 4067844, 5084805, 5423792, 6779740, 7396080, 8135688, 10169610, 13559480, 16271376, 20339220, 27118960, 40678440, 81356880]

約数ペア:

[(1, 81356880), (2, 40678440), (3, 27118960), (4, 20339220), (5, 16271376), (6, 13559480), (8, 10169610), (10, 8135688), (11, 7396080), (12, 6779740), (15, 5423792), (16, 5084805), (20, 4067844), (22, 3698040), (24, 3389870), (30, 2711896), (33, 2465360), (40, 2033922), (44, 1849020), (48, 1694935), (55, 1479216), (60, 1355948), (66, 1232680), (80, 1016961), (88, 924510), (110, 739608), (120, 677974), (132, 616340), (165, 493072), (176, 462255), (220, 369804), (240, 338987), (264, 308170), (330, 246536), (440, 184902), (528, 154085), (660, 123268), (880, 92451), (1320, 61634), (2640, 30817)]