81287472

素因数分解:

$2^4\times 3^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{107}}^1$

素因数の和:168

約数の個数: 240

約数和(自身を含む): 274803840

約数和(自身を除く): 193516368

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 17, 19, 21, 24, 28, 34, 38, 42, 48, 49, 51, 56, 57, 68, 76, 84, 98, 102, 107, 112, 114, 119, 133, 136, 147, 152, 168, 196, 204, 214, 228, 238, 266, 272, 294, 304, 321, 323, 336, 357, 392, 399, 408, 428, 456, 476, 532, 588, 642, 646, 714, 749, 784, 798, 816, 833, 856, 912, 931, 952, 969, 1064, 1176, 1284, 1292, 1428, 1498, 1596, 1666, 1712, 1819, 1862, 1904, 1938, 2033, 2128, 2247, 2261, 2352, 2499, 2568, 2584, 2793, 2856, 2996, 3192, 3332, 3638, 3724, 3876, 4066, 4494, 4522, 4998, 5136, 5168, 5243, 5457, 5586, 5712, 5992, 6099, 6384, 6664, 6783, 7276, 7448, 7752, 8132, 8988, 9044, 9996, 10486, 10914, 11172, 11984, 12198, 12733, 13328, 13566, 14231, 14552, 14896, 15504, 15729, 15827, 16264, 17976, 18088, 19992, 20972, 21828, 22344, 24396, 25466, 27132, 28462, 29104, 31458, 31654, 32528, 34561, 35952, 36176, 38199, 39984, 41944, 42693, 43656, 44688, 47481, 48792, 50932, 54264, 56924, 62916, 63308, 69122, 76398, 83888, 85386, 87312, 89131, 94962, 97584, 99617, 101864, 103683, 108528, 113848, 125832, 126616, 138244, 152796, 170772, 178262, 189924, 199234, 203728, 207366, 227696, 241927, 251664, 253232, 267393, 276488, 298851, 305592, 341544, 356524, 379848, 398468, 414732, 483854, 534786, 552976, 597702, 611184, 683088, 713048, 725781, 759696, 796936, 829464, 967708, 1069572, 1195404, 1426096, 1451562, 1593872, 1658928, 1693489, 1935416, 2139144, 2390808, 2903124, 3386978, 3870832, 4278288, 4781616, 5080467, 5806248, 6773956, 10160934, 11612496, 13547912, 20321868, 27095824, 40643736, 81287472]

約数ペア:

[(1, 81287472), (2, 40643736), (3, 27095824), (4, 20321868), (6, 13547912), (7, 11612496), (8, 10160934), (12, 6773956), (14, 5806248), (16, 5080467), (17, 4781616), (19, 4278288), (21, 3870832), (24, 3386978), (28, 2903124), (34, 2390808), (38, 2139144), (42, 1935416), (48, 1693489), (49, 1658928), (51, 1593872), (56, 1451562), (57, 1426096), (68, 1195404), (76, 1069572), (84, 967708), (98, 829464), (102, 796936), (107, 759696), (112, 725781), (114, 713048), (119, 683088), (133, 611184), (136, 597702), (147, 552976), (152, 534786), (168, 483854), (196, 414732), (204, 398468), (214, 379848), (228, 356524), (238, 341544), (266, 305592), (272, 298851), (294, 276488), (304, 267393), (321, 253232), (323, 251664), (336, 241927), (357, 227696), (392, 207366), (399, 203728), (408, 199234), (428, 189924), (456, 178262), (476, 170772), (532, 152796), (588, 138244), (642, 126616), (646, 125832), (714, 113848), (749, 108528), (784, 103683), (798, 101864), (816, 99617), (833, 97584), (856, 94962), (912, 89131), (931, 87312), (952, 85386), (969, 83888), (1064, 76398), (1176, 69122), (1284, 63308), (1292, 62916), (1428, 56924), (1498, 54264), (1596, 50932), (1666, 48792), (1712, 47481), (1819, 44688), (1862, 43656), (1904, 42693), (1938, 41944), (2033, 39984), (2128, 38199), (2247, 36176), (2261, 35952), (2352, 34561), (2499, 32528), (2568, 31654), (2584, 31458), (2793, 29104), (2856, 28462), (2996, 27132), (3192, 25466), (3332, 24396), (3638, 22344), (3724, 21828), (3876, 20972), (4066, 19992), (4494, 18088), (4522, 17976), (4998, 16264), (5136, 15827), (5168, 15729), (5243, 15504), (5457, 14896), (5586, 14552), (5712, 14231), (5992, 13566), (6099, 13328), (6384, 12733), (6664, 12198), (6783, 11984), (7276, 11172), (7448, 10914), (7752, 10486), (8132, 9996), (8988, 9044)]