128491776

素因数分解:

$2^8\times 3^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{257}}^1$

素因数の和:317

約数の個数: 216

約数和(自身を含む): 438756864

約数和(自身を除く): 310265088

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 16, 18, 21, 24, 28, 31, 32, 36, 42, 48, 56, 62, 63, 64, 72, 84, 93, 96, 112, 124, 126, 128, 144, 168, 186, 192, 217, 224, 248, 252, 256, 257, 279, 288, 336, 372, 384, 434, 448, 496, 504, 514, 558, 576, 651, 672, 744, 768, 771, 868, 896, 992, 1008, 1028, 1116, 1152, 1302, 1344, 1488, 1542, 1736, 1792, 1799, 1953, 1984, 2016, 2056, 2232, 2304, 2313, 2604, 2688, 2976, 3084, 3472, 3598, 3906, 3968, 4032, 4112, 4464, 4626, 5208, 5376, 5397, 5952, 6168, 6944, 7196, 7812, 7936, 7967, 8064, 8224, 8928, 9252, 10416, 10794, 11904, 12336, 13888, 14392, 15624, 15934, 16128, 16191, 16448, 17856, 18504, 20832, 21588, 23808, 23901, 24672, 27776, 28784, 31248, 31868, 32382, 32896, 35712, 37008, 41664, 43176, 47802, 49344, 55552, 55769, 57568, 62496, 63736, 64764, 65792, 71424, 71703, 74016, 83328, 86352, 95604, 98688, 111538, 115136, 124992, 127472, 129528, 143406, 148032, 166656, 167307, 172704, 191208, 197376, 223076, 230272, 249984, 254944, 259056, 286812, 296064, 334614, 345408, 382416, 446152, 460544, 499968, 501921, 509888, 518112, 573624, 592128, 669228, 690816, 764832, 892304, 1003842, 1019776, 1036224, 1147248, 1338456, 1381632, 1529664, 1784608, 2007684, 2039552, 2072448, 2294496, 2676912, 3059328, 3569216, 4015368, 4144896, 4588992, 5353824, 6118656, 7138432, 8030736, 9177984, 10707648, 14276864, 16061472, 18355968, 21415296, 32122944, 42830592, 64245888, 128491776]

約数ペア:

[(1, 128491776), (2, 64245888), (3, 42830592), (4, 32122944), (6, 21415296), (7, 18355968), (8, 16061472), (9, 14276864), (12, 10707648), (14, 9177984), (16, 8030736), (18, 7138432), (21, 6118656), (24, 5353824), (28, 4588992), (31, 4144896), (32, 4015368), (36, 3569216), (42, 3059328), (48, 2676912), (56, 2294496), (62, 2072448), (63, 2039552), (64, 2007684), (72, 1784608), (84, 1529664), (93, 1381632), (96, 1338456), (112, 1147248), (124, 1036224), (126, 1019776), (128, 1003842), (144, 892304), (168, 764832), (186, 690816), (192, 669228), (217, 592128), (224, 573624), (248, 518112), (252, 509888), (256, 501921), (257, 499968), (279, 460544), (288, 446152), (336, 382416), (372, 345408), (384, 334614), (434, 296064), (448, 286812), (496, 259056), (504, 254944), (514, 249984), (558, 230272), (576, 223076), (651, 197376), (672, 191208), (744, 172704), (768, 167307), (771, 166656), (868, 148032), (896, 143406), (992, 129528), (1008, 127472), (1028, 124992), (1116, 115136), (1152, 111538), (1302, 98688), (1344, 95604), (1488, 86352), (1542, 83328), (1736, 74016), (1792, 71703), (1799, 71424), (1953, 65792), (1984, 64764), (2016, 63736), (2056, 62496), (2232, 57568), (2304, 55769), (2313, 55552), (2604, 49344), (2688, 47802), (2976, 43176), (3084, 41664), (3472, 37008), (3598, 35712), (3906, 32896), (3968, 32382), (4032, 31868), (4112, 31248), (4464, 28784), (4626, 27776), (5208, 24672), (5376, 23901), (5397, 23808), (5952, 21588), (6168, 20832), (6944, 18504), (7196, 17856), (7812, 16448), (7936, 16191), (7967, 16128), (8064, 15934), (8224, 15624), (8928, 14392), (9252, 13888), (10416, 12336), (10794, 11904)]