81417736

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{197}}^1\times {\mathrm{2719}}^1$

素因数の和:2941

約数の個数: 32

約数和(自身を含む): 161568000

約数和(自身を除く): 80150264

約数列:

[1, 2, 4, 8, 19, 38, 76, 152, 197, 394, 788, 1576, 2719, 3743, 5438, 7486, 10876, 14972, 21752, 29944, 51661, 103322, 206644, 413288, 535643, 1071286, 2142572, 4285144, 10177217, 20354434, 40708868, 81417736]

約数ペア:

[(1, 81417736), (2, 40708868), (4, 20354434), (8, 10177217), (19, 4285144), (38, 2142572), (76, 1071286), (152, 535643), (197, 413288), (394, 206644), (788, 103322), (1576, 51661), (2719, 29944), (3743, 21752), (5438, 14972), (7486, 10876)]