a,b=map(int,input().split())
s=0
for i in range(1,int(a**0.5+1)):
    if not(a/i>a//i):
        if not(i/b>i//b):
            s+=1
        if not((a//i)/b>(a//i)//b):
            s+=1
if not(a**0.5>int(a**0.5)):
    s-=1
print(s)