N=int(input())
K=int(input())

x=K
import math
xr=math.ceil(math.sqrt(x))

LIST=[]
for i in range(1,xr+1):
    if x%i==0:
        LIST.append(i)
        LIST.append(x//i)

LIST=sorted(set(LIST))

ANS=0

for l in LIST:
    ANS+=max(0,(l-1-max(l-1-N,0)*2)*(K//l-1-max(K//l-1-N,0)*2))

print(ANS)