View Compilation Error

0_0_33860846_23688.cpp: In function 'int main()':
0_0_33860846_23688.cpp:111:51: error: too many arguments to function 'ull qpow(ull, ull)'
             tt1 = tt1*((qpow(prime[i],2*a[i]+2,mod)-1)/(prime[i]*prime[i]-1));
                                                   ^
0_0_33860846_23688.cpp:63:5: note: declared here
 ull qpow(ull m, ull k){ull res=1,t=m;while(k){if(k&1)res=res*t;t=t*t;k>>=1;}return res;}
     ^