20175217920

素因数分解:

$2^8\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{331}}^1$

素因数の和:419

約数の個数: 864

約数和(自身を含む): 84478552704

約数和(自身を除く): 64303334784

約数列:

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4160, 4224, 4290, 4303, 4329, 4440, 4576, 4680, 4736, 4810, 4884, 4965, 4992, 5148, 5280, 5291, 5296, 5328, 5720, 5760, 5772, 5920, 5958, 6105, 6240, 6336, 6435, 6512, 6620, 6660, 6864, 7040, 7104, 7215, 7282, 7326, 7488, 7696, 7920, 7944, 8140, 8320, 8448, 8580, 8606, 8658, 8880, 9152, 9360, 9472, 9620, 9768, 9930, 9984, 10296, 10560, 10582, 10592, 10656, 10923, 11440, 11520, 11544, 11840, 11916, 12210, 12247, 12480, 12672, 12870, 12909, 13024, 13240, 13320, 13728, 14080, 14208, 14430, 14564, 14652, 14895, 14976, 15392, 15840, 15873, 15888, 16280, 16640, 17160, 17212, 17316, 17760, 18205, 18304, 18315, 18720, 19240, 19536, 19860, 20592, 21120, 21164, 21184, 21312, 21515, 21645, 21846, 22880, 23088, 23680, 23832, 24420, 24494, 24960, 25344, 25740, 25818, 26048, 26455, 26480, 26640, 27456, 28416, 28860, 29128, 29304, 29790, 29952, 30784, 31680, 31746, 31776, 32560, 32769, 34320, 34424, 34632, 35520, 36410, 36608, 36630, 36741, 37440, 38480, 38727, 39072, 39720, 41184, 42240, 42328, 42368, 42624, 43030, 43290, 43692, 45760, 46176, 47333, 47360, 47619, 47664, 48840, 48988, 49920, 51480, 51636, 52096, 52910, 52960, 53280, 54615, 54912, 57720, 58256, 58608, 59580, 61235, 61568, 63360, 63492, 63552, 64545, 65120, 65538, 68640, 68848, 69264, 71040, 72820, 73260, 73482, 74880, 76960, 77454, 78144, 79365, 79440, 82368, 84656, 84736, 85248, 86060, 86580, 87384, 91520, 92352, 94666, 95238, 95328, 97680, 97976, 102960, 103272, 104192, 105820, 105920, 106560, 109230, 109824, 110223, 115440, 116512, 117216, 119160, 122470, 123136, 126720, 126984, 127104, 129090, 130240, 131076, 134717, 137280, 137696, 138528, 141999, 142080, 145640, 146520, 146964, 149760, 153920, 154908, 156288, 158730, 158880, 159211, 163845, 164736, 169312, 172120, 173160, 174768, 183040, 183705, 184704, 189332, 190476, 190656, 193635, 195360, 195952, 205920, 206544, 211640, 211840, 213120, 218460, 220446, 230880, 233024, 234432, 236665, 238095, 238320, 244940, 253968, 254208, 258180, 260480, 262152, 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1562880, 1567616, 1592110, 1616604, 1647360, 1652352, 1693120, 1703988, 1747680, 1751321, 1763568, 1847040, 1893320, 1904760, 1906560, 1910532, 1959520, 2020755, 2031744, 2065440, 2097216, 2129985, 2155472, 2204460, 2271984, 2330240, 2344320, 2351424, 2388165, 2424906, 2478528, 2539680, 2547376, 2621520, 2694340, 2753920, 2770560, 2796288, 2839980, 2865798, 2939280, 3029312, 3047616, 3098160, 3135232, 3184220, 3233208, 3304704, 3386240, 3407976, 3495360, 3502642, 3527136, 3786640, 3809520, 3813120, 3821064, 3919040, 4041510, 4063488, 4130880, 4194432, 4259970, 4310944, 4408920, 4543968, 4660480, 4688640, 4702848, 4776330, 4849812, 4957056, 5079360, 5094752, 5243040, 5253963, 5388680, 5507840, 5541120, 5679960, 5731596, 5878560, 6058624, 6062265, 6095232, 6196320, 6368440, 6466416, 6772480, 6815952, 6990720, 7005284, 7054272, 7164495, 7573280, 7619040, 7642128, 7838080, 8083020, 8261760, 8388864, 8519940, 8621888, 8756605, 8817840, 9087936, 9405696, 9552660, 9699624, 9914112, 10158720, 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約数ペア:

[(1, 20175217920), (2, 10087608960), (3, 6725072640), (4, 5043804480), (5, 4035043584), (6, 3362536320), (8, 2521902240), (9, 2241690880), (10, 2017521792), (11, 1834110720), (12, 1681268160), (13, 1551939840), (15, 1345014528), (16, 1260951120), (18, 1120845440), (20, 1008760896), (22, 917055360), (24, 840634080), (26, 775969920), (30, 672507264), (32, 630475560), (33, 611370240), (36, 560422720), (37, 545276160), (39, 517313280), (40, 504380448), (44, 458527680), (45, 448338176), (48, 420317040), (52, 387984960), (55, 366822144), (60, 336253632), (64, 315237780), (65, 310387968), (66, 305685120), (72, 280211360), (74, 272638080), (78, 258656640), (80, 252190224), (88, 229263840), (90, 224169088), (96, 210158520), (99, 203790080), (104, 193992480), (110, 183411072), (111, 181758720), (117, 172437760), (120, 168126816), (128, 157618890), (130, 155193984), (132, 152842560), (143, 141085440), (144, 140105680), (148, 136319040), (156, 129328320), (160, 126095112), (165, 122274048), (176, 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