81004

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{263}}^1$

素因数の和:285

約数の個数: 24

約数和(自身を含む): 177408

約数和(自身を除く): 96404

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 77, 154, 263, 308, 526, 1052, 1841, 2893, 3682, 5786, 7364, 11572, 20251, 40502, 81004]

約数ペア:

[(1, 81004), (2, 40502), (4, 20251), (7, 11572), (11, 7364), (14, 5786), (22, 3682), (28, 2893), (44, 1841), (77, 1052), (154, 526), (263, 308)]