C++ :

#include<iostream>
#include<cstring>
#include<algorithm>
#include<string>
#include<cstdio>
using namespace std;
int n,l,r,ans;
int main()
{
	//freopen("divisions.in","r",stdin);
	//freopen("divisions.out","w",stdout);
	cin>>l>>r;
	for(int i=1;i<=r;i++)
		for(int j=(l/i);j*i<=r;j++)
	{
		if(j*i>=l)
		ans++;
	}
	cout<<ans<<endl;
	fclose(stdin);
	fclose(stdout);
	return 0;
}