78207128

素因数分解:

$2^3\times {\mathrm{101}}^1\times {\mathrm{151}}^1\times {\mathrm{641}}^1$

素因数の和:899

約数の個数: 32

約数和(自身を含む): 149303520

約数和(自身を除く): 71096392

約数列:

[1, 2, 4, 8, 101, 151, 202, 302, 404, 604, 641, 808, 1208, 1282, 2564, 5128, 15251, 30502, 61004, 64741, 96791, 122008, 129482, 193582, 258964, 387164, 517928, 774328, 9775891, 19551782, 39103564, 78207128]

約数ペア:

[(1, 78207128), (2, 39103564), (4, 19551782), (8, 9775891), (101, 774328), (151, 517928), (202, 387164), (302, 258964), (404, 193582), (604, 129482), (641, 122008), (808, 96791), (1208, 64741), (1282, 61004), (2564, 30502), (5128, 15251)]