20781199488

素因数分解:

$2^7\times 3^1\times 7^2\times {\mathrm{641}}^1\times {\mathrm{1723}}^1$

素因数の和:2395

約数の個数: 192

約数和(自身を含む): 64349817120

約数和(自身を除く): 43568617632

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 24, 28, 32, 42, 48, 49, 56, 64, 84, 96, 98, 112, 128, 147, 168, 192, 196, 224, 294, 336, 384, 392, 448, 588, 641, 672, 784, 896, 1176, 1282, 1344, 1568, 1723, 1923, 2352, 2564, 2688, 3136, 3446, 3846, 4487, 4704, 5128, 5169, 6272, 6892, 7692, 8974, 9408, 10256, 10338, 12061, 13461, 13784, 15384, 17948, 18816, 20512, 20676, 24122, 26922, 27568, 30768, 31409, 35896, 36183, 41024, 41352, 48244, 53844, 55136, 61536, 62818, 71792, 72366, 82048, 82704, 84427, 94227, 96488, 107688, 110272, 123072, 125636, 143584, 144732, 165408, 168854, 188454, 192976, 215376, 220544, 246144, 251272, 253281, 287168, 289464, 330816, 337708, 376908, 385952, 430752, 502544, 506562, 574336, 578928, 661632, 675416, 753816, 771904, 861504, 1005088, 1013124, 1104443, 1157856, 1350832, 1507632, 1543808, 1723008, 2010176, 2026248, 2208886, 2315712, 2701664, 3015264, 3313329, 4020352, 4052496, 4417772, 4631424, 5403328, 6030528, 6626658, 7731101, 8104992, 8835544, 10806656, 12061056, 13253316, 15462202, 16209984, 17671088, 23193303, 26506632, 30924404, 32419968, 35342176, 46386606, 53013264, 54117707, 61848808, 70684352, 92773212, 106026528, 108235414, 123697616, 141368704, 162353121, 185546424, 212053056, 216470828, 247395232, 324706242, 371092848, 424106112, 432941656, 494790464, 649412484, 742185696, 865883312, 989580928, 1298824968, 1484371392, 1731766624, 2597649936, 2968742784, 3463533248, 5195299872, 6927066496, 10390599744, 20781199488]

約数ペア:

[(1, 20781199488), (2, 10390599744), (3, 6927066496), (4, 5195299872), (6, 3463533248), (7, 2968742784), (8, 2597649936), (12, 1731766624), (14, 1484371392), (16, 1298824968), (21, 989580928), (24, 865883312), (28, 742185696), (32, 649412484), (42, 494790464), (48, 432941656), (49, 424106112), (56, 371092848), (64, 324706242), (84, 247395232), (96, 216470828), (98, 212053056), (112, 185546424), (128, 162353121), (147, 141368704), (168, 123697616), (192, 108235414), (196, 106026528), (224, 92773212), (294, 70684352), (336, 61848808), (384, 54117707), (392, 53013264), (448, 46386606), (588, 35342176), (641, 32419968), (672, 30924404), (784, 26506632), (896, 23193303), (1176, 17671088), (1282, 16209984), (1344, 15462202), (1568, 13253316), (1723, 12061056), (1923, 10806656), (2352, 8835544), (2564, 8104992), (2688, 7731101), (3136, 6626658), (3446, 6030528), (3846, 5403328), (4487, 4631424), (4704, 4417772), (5128, 4052496), (5169, 4020352), (6272, 3313329), (6892, 3015264), (7692, 2701664), (8974, 2315712), (9408, 2208886), (10256, 2026248), (10338, 2010176), (12061, 1723008), (13461, 1543808), (13784, 1507632), (15384, 1350832), (17948, 1157856), (18816, 1104443), (20512, 1013124), (20676, 1005088), (24122, 861504), (26922, 771904), (27568, 753816), (30768, 675416), (31409, 661632), (35896, 578928), (36183, 574336), (41024, 506562), (41352, 502544), (48244, 430752), (53844, 385952), (55136, 376908), (61536, 337708), (62818, 330816), (71792, 289464), (72366, 287168), (82048, 253281), (82704, 251272), (84427, 246144), (94227, 220544), (96488, 215376), (107688, 192976), (110272, 188454), (123072, 168854), (125636, 165408), (143584, 144732)]