281798608

素因数分解:

$2^4\times 7^2\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{643}}^1$

素因数の和:721

約数の個数: 120

約数和(自身を含む): 700975968

約数和(自身を除く): 419177360

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 43, 49, 52, 56, 86, 91, 98, 104, 112, 172, 182, 196, 208, 301, 344, 364, 392, 559, 602, 637, 643, 688, 728, 784, 1118, 1204, 1274, 1286, 1456, 2107, 2236, 2408, 2548, 2572, 3913, 4214, 4472, 4501, 4816, 5096, 5144, 7826, 8359, 8428, 8944, 9002, 10192, 10288, 15652, 16718, 16856, 18004, 27391, 27649, 31304, 31507, 33436, 33712, 36008, 54782, 55298, 58513, 62608, 63014, 66872, 72016, 109564, 110596, 117026, 126028, 133744, 193543, 219128, 221192, 234052, 252056, 359437, 387086, 409591, 438256, 442384, 468104, 504112, 718874, 774172, 819182, 936208, 1354801, 1437748, 1548344, 1638364, 2516059, 2709602, 2875496, 3096688, 3276728, 5032118, 5419204, 5750992, 6553456, 10064236, 10838408, 17612413, 20128472, 21676816, 35224826, 40256944, 70449652, 140899304, 281798608]

約数ペア:

[(1, 281798608), (2, 140899304), (4, 70449652), (7, 40256944), (8, 35224826), (13, 21676816), (14, 20128472), (16, 17612413), (26, 10838408), (28, 10064236), (43, 6553456), (49, 5750992), (52, 5419204), (56, 5032118), (86, 3276728), (91, 3096688), (98, 2875496), (104, 2709602), (112, 2516059), (172, 1638364), (182, 1548344), (196, 1437748), (208, 1354801), (301, 936208), (344, 819182), (364, 774172), (392, 718874), (559, 504112), (602, 468104), (637, 442384), (643, 438256), (688, 409591), (728, 387086), (784, 359437), (1118, 252056), (1204, 234052), (1274, 221192), (1286, 219128), (1456, 193543), (2107, 133744), (2236, 126028), (2408, 117026), (2548, 110596), (2572, 109564), (3913, 72016), (4214, 66872), (4472, 63014), (4501, 62608), (4816, 58513), (5096, 55298), (5144, 54782), (7826, 36008), (8359, 33712), (8428, 33436), (8944, 31507), (9002, 31304), (10192, 27649), (10288, 27391), (15652, 18004), (16718, 16856)]