20766784

素因数分解:

$2^6\times {\mathrm{29}}^1\times {\mathrm{67}}^1\times {\mathrm{167}}^1$

素因数の和:275

約数の個数: 56

約数和(自身を含む): 43525440

約数和(自身を除く): 22758656

約数列:

[1, 2, 4, 8, 16, 29, 32, 58, 64, 67, 116, 134, 167, 232, 268, 334, 464, 536, 668, 928, 1072, 1336, 1856, 1943, 2144, 2672, 3886, 4288, 4843, 5344, 7772, 9686, 10688, 11189, 15544, 19372, 22378, 31088, 38744, 44756, 62176, 77488, 89512, 124352, 154976, 179024, 309952, 324481, 358048, 648962, 716096, 1297924, 2595848, 5191696, 10383392, 20766784]

約数ペア:

[(1, 20766784), (2, 10383392), (4, 5191696), (8, 2595848), (16, 1297924), (29, 716096), (32, 648962), (58, 358048), (64, 324481), (67, 309952), (116, 179024), (134, 154976), (167, 124352), (232, 89512), (268, 77488), (334, 62176), (464, 44756), (536, 38744), (668, 31088), (928, 22378), (1072, 19372), (1336, 15544), (1856, 11189), (1943, 10688), (2144, 9686), (2672, 7772), (3886, 5344), (4288, 4843)]