81535216

素因数分解:

$2^4\times 7^3\times {\mathrm{83}}^1\times {\mathrm{179}}^1$

素因数の和:291

約数の個数: 80

約数和(自身を含む): 187488000

約数和(自身を除く): 105952784

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 49, 56, 83, 98, 112, 166, 179, 196, 332, 343, 358, 392, 581, 664, 686, 716, 784, 1162, 1253, 1328, 1372, 1432, 2324, 2506, 2744, 2864, 4067, 4648, 5012, 5488, 8134, 8771, 9296, 10024, 14857, 16268, 17542, 20048, 28469, 29714, 32536, 35084, 56938, 59428, 61397, 65072, 70168, 103999, 113876, 118856, 122794, 140336, 207998, 227752, 237712, 245588, 415996, 455504, 491176, 727993, 831992, 982352, 1455986, 1663984, 2911972, 5095951, 5823944, 10191902, 11647888, 20383804, 40767608, 81535216]

約数ペア:

[(1, 81535216), (2, 40767608), (4, 20383804), (7, 11647888), (8, 10191902), (14, 5823944), (16, 5095951), (28, 2911972), (49, 1663984), (56, 1455986), (83, 982352), (98, 831992), (112, 727993), (166, 491176), (179, 455504), (196, 415996), (332, 245588), (343, 237712), (358, 227752), (392, 207998), (581, 140336), (664, 122794), (686, 118856), (716, 113876), (784, 103999), (1162, 70168), (1253, 65072), (1328, 61397), (1372, 59428), (1432, 56938), (2324, 35084), (2506, 32536), (2744, 29714), (2864, 28469), (4067, 20048), (4648, 17542), (5012, 16268), (5488, 14857), (8134, 10024), (8771, 9296)]