81130712

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{439}}^1\times {\mathrm{1777}}^1$

素因数の和:2235

約数の個数: 32

約数和(自身を含む): 164287200

約数和(自身を除く): 83156488

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 439, 878, 1756, 1777, 3512, 3554, 5707, 7108, 11414, 14216, 22828, 23101, 45656, 46202, 92404, 184808, 780103, 1560206, 3120412, 6240824, 10141339, 20282678, 40565356, 81130712]

約数ペア:

[(1, 81130712), (2, 40565356), (4, 20282678), (8, 10141339), (13, 6240824), (26, 3120412), (52, 1560206), (104, 780103), (439, 184808), (878, 92404), (1756, 46202), (1777, 45656), (3512, 23101), (3554, 22828), (5707, 14216), (7108, 11414)]