using namespace std; | |
int main() | |
{ | |
ios_base::sync_with_stdio(0);cin.tie(0);cout.tie(0); | |
ll n; cin>>n; | |
ll t, ans=0; | |
for(t=1; (n/t)>=t ; t++){ | |
ans = ans + (n/t) - (t-1); | |
} | |
cout<<ans; | |
return 0; | |
} | |
using namespace std; | |
int main() | |
{ | |
ios_base::sync_with_stdio(0);cin.tie(0);cout.tie(0); | |
ll n; cin>>n; | |
ll t, ans=0; | |
for(t=1; (n/t)>=t ; t++){ | |
ans = ans + (n/t) - (t-1); | |
} | |
cout<<ans; | |
return 0; | |
} | |