640699488

素因数分解:

$2^5\times 3^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{331}}^1$

素因数の和:418

約数の個数: 288

約数和(自身を含む): 2192666112

約数和(自身を除く): 1551966624

約数列:

[1, 2, 3, 4, 6, 8, 9, 11, 12, 13, 16, 18, 22, 24, 26, 32, 33, 36, 39, 44, 47, 48, 52, 66, 72, 78, 88, 94, 96, 99, 104, 117, 132, 141, 143, 144, 156, 176, 188, 198, 208, 234, 264, 282, 286, 288, 312, 331, 352, 376, 396, 416, 423, 429, 468, 517, 528, 564, 572, 611, 624, 662, 752, 792, 846, 858, 936, 993, 1034, 1056, 1128, 1144, 1222, 1248, 1287, 1324, 1504, 1551, 1584, 1692, 1716, 1833, 1872, 1986, 2068, 2256, 2288, 2444, 2574, 2648, 2979, 3102, 3168, 3384, 3432, 3641, 3666, 3744, 3972, 4136, 4303, 4512, 4576, 4653, 4888, 5148, 5296, 5499, 5958, 6204, 6721, 6768, 6864, 7282, 7332, 7944, 8272, 8606, 9306, 9776, 10296, 10592, 10923, 10998, 11916, 12408, 12909, 13442, 13536, 13728, 14564, 14664, 15557, 15888, 16544, 17212, 18612, 19552, 20163, 20592, 21846, 21996, 23832, 24816, 25818, 26884, 29128, 29328, 31114, 31776, 32769, 34424, 37224, 38727, 40326, 41184, 43692, 43992, 46671, 47333, 47664, 49632, 51636, 53768, 58256, 58656, 60489, 62228, 65538, 68848, 74448, 77454, 80652, 87384, 87984, 93342, 94666, 95328, 103272, 107536, 116512, 120978, 124456, 131076, 137696, 140013, 141999, 148896, 154908, 161304, 171127, 174768, 175968, 186684, 189332, 202241, 206544, 215072, 241956, 248912, 262152, 280026, 283998, 309816, 322608, 342254, 349536, 373368, 378664, 404482, 413088, 425997, 483912, 497824, 513381, 524304, 560052, 567996, 606723, 619632, 645216, 684508, 746736, 757328, 808964, 851994, 967824, 1026762, 1048608, 1120104, 1135992, 1213446, 1239264, 1369016, 1493472, 1514656, 1540143, 1617928, 1703988, 1820169, 1935648, 2053524, 2224651, 2240208, 2271984, 2426892, 2738032, 3080286, 3235856, 3407976, 3640338, 4107048, 4449302, 4480416, 4543968, 4853784, 5476064, 6160572, 6471712, 6673953, 6815952, 7280676, 8214096, 8898604, 9707568, 12321144, 13347906, 13631904, 14561352, 16428192, 17797208, 19415136, 20021859, 24642288, 26695812, 29122704, 35594416, 40043718, 49284576, 53391624, 58245408, 71188832, 80087436, 106783248, 160174872, 213566496, 320349744, 640699488]

約数ペア:

[(1, 640699488), (2, 320349744), (3, 213566496), (4, 160174872), (6, 106783248), (8, 80087436), (9, 71188832), (11, 58245408), (12, 53391624), (13, 49284576), (16, 40043718), (18, 35594416), (22, 29122704), (24, 26695812), (26, 24642288), (32, 20021859), (33, 19415136), (36, 17797208), (39, 16428192), (44, 14561352), (47, 13631904), (48, 13347906), (52, 12321144), (66, 9707568), (72, 8898604), (78, 8214096), (88, 7280676), (94, 6815952), (96, 6673953), (99, 6471712), (104, 6160572), (117, 5476064), (132, 4853784), (141, 4543968), (143, 4480416), (144, 4449302), (156, 4107048), (176, 3640338), (188, 3407976), (198, 3235856), (208, 3080286), (234, 2738032), (264, 2426892), (282, 2271984), (286, 2240208), (288, 2224651), (312, 2053524), (331, 1935648), (352, 1820169), (376, 1703988), (396, 1617928), (416, 1540143), (423, 1514656), (429, 1493472), (468, 1369016), (517, 1239264), (528, 1213446), (564, 1135992), (572, 1120104), (611, 1048608), (624, 1026762), (662, 967824), (752, 851994), (792, 808964), (846, 757328), (858, 746736), (936, 684508), (993, 645216), (1034, 619632), (1056, 606723), (1128, 567996), (1144, 560052), (1222, 524304), (1248, 513381), (1287, 497824), (1324, 483912), (1504, 425997), (1551, 413088), (1584, 404482), (1692, 378664), (1716, 373368), (1833, 349536), (1872, 342254), (1986, 322608), (2068, 309816), (2256, 283998), (2288, 280026), (2444, 262152), (2574, 248912), (2648, 241956), (2979, 215072), (3102, 206544), (3168, 202241), (3384, 189332), (3432, 186684), (3641, 175968), (3666, 174768), (3744, 171127), (3972, 161304), (4136, 154908), (4303, 148896), (4512, 141999), (4576, 140013), (4653, 137696), (4888, 131076), (5148, 124456), (5296, 120978), (5499, 116512), (5958, 107536), (6204, 103272), (6721, 95328), (6768, 94666), (6864, 93342), (7282, 87984), (7332, 87384), (7944, 80652), (8272, 77454), (8606, 74448), (9306, 68848), (9776, 65538), (10296, 62228), (10592, 60489), (10923, 58656), (10998, 58256), (11916, 53768), (12408, 51636), (12909, 49632), (13442, 47664), (13536, 47333), (13728, 46671), (14564, 43992), (14664, 43692), (15557, 41184), (15888, 40326), (16544, 38727), (17212, 37224), (18612, 34424), (19552, 32769), (20163, 31776), (20592, 31114), (21846, 29328), (21996, 29128), (23832, 26884), (24816, 25818)]