81271344

素因数分解:

$2^4\times 3^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{1999}}^1$

素因数の和:2039

約数の個数: 120

約数和(自身を含む): 263872000

約数和(自身を除く): 182600656

約数列:

[1, 2, 3, 4, 6, 7, 8, 11, 12, 14, 16, 21, 22, 24, 28, 33, 42, 44, 48, 56, 66, 77, 84, 88, 112, 121, 132, 154, 168, 176, 231, 242, 264, 308, 336, 363, 462, 484, 528, 616, 726, 847, 924, 968, 1232, 1452, 1694, 1848, 1936, 1999, 2541, 2904, 3388, 3696, 3998, 5082, 5808, 5997, 6776, 7996, 10164, 11994, 13552, 13993, 15992, 20328, 21989, 23988, 27986, 31984, 40656, 41979, 43978, 47976, 55972, 65967, 83958, 87956, 95952, 111944, 131934, 153923, 167916, 175912, 223888, 241879, 263868, 307846, 335832, 351824, 461769, 483758, 527736, 615692, 671664, 725637, 923538, 967516, 1055472, 1231384, 1451274, 1693153, 1847076, 1935032, 2462768, 2902548, 3386306, 3694152, 3870064, 5079459, 5805096, 6772612, 7388304, 10158918, 11610192, 13545224, 20317836, 27090448, 40635672, 81271344]

約数ペア:

[(1, 81271344), (2, 40635672), (3, 27090448), (4, 20317836), (6, 13545224), (7, 11610192), (8, 10158918), (11, 7388304), (12, 6772612), (14, 5805096), (16, 5079459), (21, 3870064), (22, 3694152), (24, 3386306), (28, 2902548), (33, 2462768), (42, 1935032), (44, 1847076), (48, 1693153), (56, 1451274), (66, 1231384), (77, 1055472), (84, 967516), (88, 923538), (112, 725637), (121, 671664), (132, 615692), (154, 527736), (168, 483758), (176, 461769), (231, 351824), (242, 335832), (264, 307846), (308, 263868), (336, 241879), (363, 223888), (462, 175912), (484, 167916), (528, 153923), (616, 131934), (726, 111944), (847, 95952), (924, 87956), (968, 83958), (1232, 65967), (1452, 55972), (1694, 47976), (1848, 43978), (1936, 41979), (1999, 40656), (2541, 31984), (2904, 27986), (3388, 23988), (3696, 21989), (3998, 20328), (5082, 15992), (5808, 13993), (5997, 13552), (6776, 11994), (7996, 10164)]