81564784

素因数分解:

$2^4\times 7^1\times {\mathrm{337}}^1\times {\mathrm{2161}}^1$

素因数の和:2513

約数の個数: 40

約数和(自身を含む): 181227488

約数和(自身を除く): 99662704

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 337, 674, 1348, 2161, 2359, 2696, 4322, 4718, 5392, 8644, 9436, 15127, 17288, 18872, 30254, 34576, 37744, 60508, 121016, 242032, 728257, 1456514, 2913028, 5097799, 5826056, 10195598, 11652112, 20391196, 40782392, 81564784]

約数ペア:

[(1, 81564784), (2, 40782392), (4, 20391196), (7, 11652112), (8, 10195598), (14, 5826056), (16, 5097799), (28, 2913028), (56, 1456514), (112, 728257), (337, 242032), (674, 121016), (1348, 60508), (2161, 37744), (2359, 34576), (2696, 30254), (4322, 18872), (4718, 17288), (5392, 15127), (8644, 9436)]