81191488

素因数分解:

$2^6\times 7^1\times {\mathrm{61}}^1\times {\mathrm{2971}}^1$

素因数の和:3051

約数の個数: 56

約数和(自身を含む): 187212224

約数和(自身を除く): 106020736

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 61, 64, 112, 122, 224, 244, 427, 448, 488, 854, 976, 1708, 1952, 2971, 3416, 3904, 5942, 6832, 11884, 13664, 20797, 23768, 27328, 41594, 47536, 83188, 95072, 166376, 181231, 190144, 332752, 362462, 665504, 724924, 1268617, 1331008, 1449848, 2537234, 2899696, 5074468, 5799392, 10148936, 11598784, 20297872, 40595744, 81191488]

約数ペア:

[(1, 81191488), (2, 40595744), (4, 20297872), (7, 11598784), (8, 10148936), (14, 5799392), (16, 5074468), (28, 2899696), (32, 2537234), (56, 1449848), (61, 1331008), (64, 1268617), (112, 724924), (122, 665504), (224, 362462), (244, 332752), (427, 190144), (448, 181231), (488, 166376), (854, 95072), (976, 83188), (1708, 47536), (1952, 41594), (2971, 27328), (3416, 23768), (3904, 20797), (5942, 13664), (6832, 11884)]