n, p= [int(v) for v in input().split(" ")]


def soinnsuu(x):
    outlist = []
    xsq = math.ceil(math.sqrt(x))
    for i in range(2,xsq+1):
        while x % i == 0:
            x = x // i
            outlist.append(i)
    return(list(set(outlist)))

def baisuu(x,limit):
    r = limit//x
    return [x*(i+1) for i in range(r)]



jlist = [p]

for k in range(n):
    templist = []
    for i in jlist:
        templist += soinnsuu(i) + baisuu(i,n)
    setlist = list(set(templist))

    if jlist == setlist:
        break
    else:
        jlist = setlist

print(len(jlist))