81663604

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{263}}^1\times {\mathrm{7057}}^1$

素因数の和:7335

約数の個数: 24

約数和(自身を含む): 156518208

約数和(自身を除く): 74854604

約数列:

[1, 2, 4, 11, 22, 44, 263, 526, 1052, 2893, 5786, 7057, 11572, 14114, 28228, 77627, 155254, 310508, 1855991, 3711982, 7423964, 20415901, 40831802, 81663604]

約数ペア:

[(1, 81663604), (2, 40831802), (4, 20415901), (11, 7423964), (22, 3711982), (44, 1855991), (263, 310508), (526, 155254), (1052, 77627), (2893, 28228), (5786, 14114), (7057, 11572)]