81551328768

素因数分解:

$2^9\times 3^6\times 7^5\times {\mathrm{13}}^1$

素因数の和:84

約数の個数: 840

約数和(自身を含む): 306942573168

約数和(自身を除く): 225391244400

約数列:

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3250611, 3302208, 3371004, 3424512, 3495856, 3500658, 3556224, 3630312, 3687936, 3714984, 3773952, 3852576, 3932838, 3995264, 4000752, 4084101, 4148928, 4245696, 4302592, 4334148, 4402944, 4494672, 4572288, 4667544, 4741632, 4840416, 4852224, 4953312, 5056506, 5136768, 5243784, 5334336, 5445468, 5531904, 5660928, 5778864, 5899257, 5992896, 6096384, 6223392, 6453888, 6501222, 6604416, 6742008, 6849024, 6991712, 7001316, 7112448, 7260624, 7429968, 7584759, 7705152, 7865676, 7990528, 8001504, 8168202, 8297856, 8491392, 8605184, 8668296, 8805888, 8989344, 9144576, 9335088, 9680832, 9906624, 10113012, 10273536, 10487568, 10668672, 10890936, 11063808, 11321856, 11557728, 11798514, 11985792, 12252303, 12446784, 12907776, 13002444, 13208832, 13484016, 13983424, 14002632, 14224896, 14521248, 14859936, 15169518, 15410304, 15731352, 15981056, 16003008, 16336404, 16595712, 16982784, 17336592, 17697771, 17978688, 18289152, 18670176, 19361664, 19813248, 20226024, 20547072, 20975136, 21337344, 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約数ペア:

[(1, 81551328768), (2, 40775664384), (3, 27183776256), (4, 20387832192), (6, 13591888128), (7, 11650189824), (8, 10193916096), (9, 9061258752), (12, 6795944064), (13, 6273179136), (14, 5825094912), (16, 5096958048), (18, 4530629376), (21, 3883396608), (24, 3397972032), (26, 3136589568), (27, 3020419584), (28, 2912547456), (32, 2548479024), (36, 2265314688), (39, 2091059712), (42, 1941698304), (48, 1698986016), (49, 1664312832), (52, 1568294784), (54, 1510209792), (56, 1456273728), (63, 1294465536), (64, 1274239512), (72, 1132657344), (78, 1045529856), (81, 1006806528), (84, 970849152), (91, 896168448), (96, 849493008), (98, 832156416), (104, 784147392), (108, 755104896), (112, 728136864), (117, 697019904), (126, 647232768), (128, 637119756), (144, 566328672), (147, 554770944), (156, 522764928), (162, 503403264), (168, 485424576), (182, 448084224), (189, 431488512), (192, 424746504), (196, 416078208), (208, 392073696), (216, 377552448), (224, 364068432), (234, 348509952), (243, 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(1344, 60678072), (1372, 59439744), (1404, 58084992), (1456, 56010528), (1458, 55933696), (1512, 53936064), (1536, 53093313), (1568, 52009776), (1638, 49787136), (1664, 49009212), (1701, 47943168), (1728, 47194056), (1764, 46230912), (1792, 45508554), (1872, 43563744), (1911, 42674688), (1944, 41950272), (2016, 40452048), (2058, 39626496), (2106, 38723328), (2184, 37340352), (2268, 35957376), (2304, 35395542), (2352, 34673184), (2401, 33965568), (2457, 33191424), (2496, 32672808), (2548, 32006016), (2592, 31462704), (2646, 30820608), (2688, 30339036), (2744, 29719872), (2808, 29042496), (2912, 28005264), (2916, 27966848), (3024, 26968032), (3087, 26417664), (3136, 26004888), (3159, 25815552), (3276, 24893568), (3328, 24504606), (3402, 23971584), (3456, 23597028), (3528, 23115456), (3584, 22754277), (3744, 21781872), (3822, 21337344), (3888, 20975136), (3969, 20547072), (4032, 20226024), (4116, 19813248), (4212, 19361664), (4368, 18670176), (4459, 18289152), (4536, 17978688), (4608, 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