666784

素因数分解:

$2^5\times {\mathrm{67}}^1\times {\mathrm{311}}^1$

素因数の和:388

約数の個数: 24

約数和(自身を含む): 1336608

約数和(自身を除く): 669824

約数列:

[1, 2, 4, 8, 16, 32, 67, 134, 268, 311, 536, 622, 1072, 1244, 2144, 2488, 4976, 9952, 20837, 41674, 83348, 166696, 333392, 666784]

約数ペア:

[(1, 666784), (2, 333392), (4, 166696), (8, 83348), (16, 41674), (32, 20837), (67, 9952), (134, 4976), (268, 2488), (311, 2144), (536, 1244), (622, 1072)]