20431488

素因数分解:

$2^7\times 3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{691}}^1$

素因数の和:726

約数の個数: 128

約数和(自身を含む): 67760640

約数和(自身を除く): 47329152

約数列:

[1, 2, 3, 4, 6, 7, 8, 11, 12, 14, 16, 21, 22, 24, 28, 32, 33, 42, 44, 48, 56, 64, 66, 77, 84, 88, 96, 112, 128, 132, 154, 168, 176, 192, 224, 231, 264, 308, 336, 352, 384, 448, 462, 528, 616, 672, 691, 704, 896, 924, 1056, 1232, 1344, 1382, 1408, 1848, 2073, 2112, 2464, 2688, 2764, 3696, 4146, 4224, 4837, 4928, 5528, 7392, 7601, 8292, 9674, 9856, 11056, 14511, 14784, 15202, 16584, 19348, 22112, 22803, 29022, 29568, 30404, 33168, 38696, 44224, 45606, 53207, 58044, 60808, 66336, 77392, 88448, 91212, 106414, 116088, 121616, 132672, 154784, 159621, 182424, 212828, 232176, 243232, 265344, 309568, 319242, 364848, 425656, 464352, 486464, 619136, 638484, 729696, 851312, 928704, 972928, 1276968, 1459392, 1702624, 1857408, 2553936, 2918784, 3405248, 5107872, 6810496, 10215744, 20431488]

約数ペア:

[(1, 20431488), (2, 10215744), (3, 6810496), (4, 5107872), (6, 3405248), (7, 2918784), (8, 2553936), (11, 1857408), (12, 1702624), (14, 1459392), (16, 1276968), (21, 972928), (22, 928704), (24, 851312), (28, 729696), (32, 638484), (33, 619136), (42, 486464), (44, 464352), (48, 425656), (56, 364848), (64, 319242), (66, 309568), (77, 265344), (84, 243232), (88, 232176), (96, 212828), (112, 182424), (128, 159621), (132, 154784), (154, 132672), (168, 121616), (176, 116088), (192, 106414), (224, 91212), (231, 88448), (264, 77392), (308, 66336), (336, 60808), (352, 58044), (384, 53207), (448, 45606), (462, 44224), (528, 38696), (616, 33168), (672, 30404), (691, 29568), (704, 29022), (896, 22803), (924, 22112), (1056, 19348), (1232, 16584), (1344, 15202), (1382, 14784), (1408, 14511), (1848, 11056), (2073, 9856), (2112, 9674), (2464, 8292), (2688, 7601), (2764, 7392), (3696, 5528), (4146, 4928), (4224, 4837)]