128031984

素因数分解:

$2^4\times 3^2\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1$

素因数の和:140

約数の個数: 240

約数和(自身を含む): 408545280

約数和(自身を除く): 280513296

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 23, 24, 29, 31, 36, 43, 46, 48, 58, 62, 69, 72, 86, 87, 92, 93, 116, 124, 129, 138, 144, 172, 174, 184, 186, 207, 232, 248, 258, 261, 276, 279, 344, 348, 368, 372, 387, 414, 464, 496, 516, 522, 552, 558, 667, 688, 696, 713, 744, 774, 828, 899, 989, 1032, 1044, 1104, 1116, 1247, 1333, 1334, 1392, 1426, 1488, 1548, 1656, 1798, 1978, 2001, 2064, 2088, 2139, 2232, 2494, 2666, 2668, 2697, 2852, 2967, 3096, 3312, 3596, 3741, 3956, 3999, 4002, 4176, 4278, 4464, 4988, 5332, 5336, 5394, 5704, 5934, 6003, 6192, 6417, 7192, 7482, 7912, 7998, 8004, 8091, 8556, 8901, 9976, 10664, 10672, 10788, 11223, 11408, 11868, 11997, 12006, 12834, 14384, 14964, 15824, 15996, 16008, 16182, 17112, 17802, 19952, 20677, 21328, 21576, 22446, 23736, 23994, 24012, 25668, 28681, 29928, 30659, 31992, 32016, 32364, 34224, 35604, 38657, 41354, 43152, 44892, 47472, 47988, 48024, 51336, 57362, 59856, 61318, 62031, 63984, 64728, 71208, 77314, 82708, 86043, 89784, 91977, 95976, 96048, 102672, 114724, 115971, 122636, 124062, 129456, 142416, 154628, 165416, 172086, 179568, 183954, 186093, 191952, 229448, 231942, 245272, 248124, 258129, 275931, 309256, 330832, 344172, 347913, 367908, 372186, 458896, 463884, 490544, 496248, 516258, 551862, 618512, 688344, 695826, 735816, 744372, 889111, 927768, 992496, 1032516, 1103724, 1376688, 1391652, 1471632, 1488744, 1778222, 1855536, 2065032, 2207448, 2667333, 2783304, 2977488, 3556444, 4130064, 4414896, 5334666, 5566608, 7112888, 8001999, 10669332, 14225776, 16003998, 21338664, 32007996, 42677328, 64015992, 128031984]

約数ペア:

[(1, 128031984), (2, 64015992), (3, 42677328), (4, 32007996), (6, 21338664), (8, 16003998), (9, 14225776), (12, 10669332), (16, 8001999), (18, 7112888), (23, 5566608), (24, 5334666), (29, 4414896), (31, 4130064), (36, 3556444), (43, 2977488), (46, 2783304), (48, 2667333), (58, 2207448), (62, 2065032), (69, 1855536), (72, 1778222), (86, 1488744), (87, 1471632), (92, 1391652), (93, 1376688), (116, 1103724), (124, 1032516), (129, 992496), (138, 927768), (144, 889111), (172, 744372), (174, 735816), (184, 695826), (186, 688344), (207, 618512), (232, 551862), (248, 516258), (258, 496248), (261, 490544), (276, 463884), (279, 458896), (344, 372186), (348, 367908), (368, 347913), (372, 344172), (387, 330832), (414, 309256), (464, 275931), (496, 258129), (516, 248124), (522, 245272), (552, 231942), (558, 229448), (667, 191952), (688, 186093), (696, 183954), (713, 179568), (744, 172086), (774, 165416), (828, 154628), (899, 142416), (989, 129456), (1032, 124062), (1044, 122636), (1104, 115971), (1116, 114724), (1247, 102672), (1333, 96048), (1334, 95976), (1392, 91977), (1426, 89784), (1488, 86043), (1548, 82708), (1656, 77314), (1798, 71208), (1978, 64728), (2001, 63984), (2064, 62031), (2088, 61318), (2139, 59856), (2232, 57362), (2494, 51336), (2666, 48024), (2668, 47988), (2697, 47472), (2852, 44892), (2967, 43152), (3096, 41354), (3312, 38657), (3596, 35604), (3741, 34224), (3956, 32364), (3999, 32016), (4002, 31992), (4176, 30659), (4278, 29928), (4464, 28681), (4988, 25668), (5332, 24012), (5336, 23994), (5394, 23736), (5704, 22446), (5934, 21576), (6003, 21328), (6192, 20677), (6417, 19952), (7192, 17802), (7482, 17112), (7912, 16182), (7998, 16008), (8004, 15996), (8091, 15824), (8556, 14964), (8901, 14384), (9976, 12834), (10664, 12006), (10672, 11997), (10788, 11868), (11223, 11408)]