81043976

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{263}}^1\times {\mathrm{2963}}^1$

素因数の和:3245

約数の個数: 32

約数和(自身を含む): 164324160

約数和(自身を除く): 83280184

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 263, 526, 1052, 2104, 2963, 3419, 5926, 6838, 11852, 13676, 23704, 27352, 38519, 77038, 154076, 308152, 779269, 1558538, 3117076, 6234152, 10130497, 20260994, 40521988, 81043976]

約数ペア:

[(1, 81043976), (2, 40521988), (4, 20260994), (8, 10130497), (13, 6234152), (26, 3117076), (52, 1558538), (104, 779269), (263, 308152), (526, 154076), (1052, 77038), (2104, 38519), (2963, 27352), (3419, 23704), (5926, 13676), (6838, 11852)]