//
// Created by cteam012 on 12/1/19.
//

#include <stdio.h>
#include <math.h>

#define int long long

signed main() {
    int n, m;
    scanf("%lld %lld", &n, &m);
    int s = 0;
    int sqrtm = (int)sqrt((double)m);
    for (int d=1; d<=sqrtm; ++d) {
        if (d*d>=n) {
            ++s;
        }
        int cgd = n+d-1-(n-1)%d;
        int dspd = d*d+d;
        if (cgd > dspd && cgd <= m) {
            s += 2*((m-cgd)/d+1);
        } else if (dspd <= m) {
            s += 2*((m-dspd)/d+1);
        }
    }
    printf("%lld", s);
    return 0;
}