N,K=map(int,input().split())
mod=10**9+7

import math

def fact(x):
    L=int(math.sqrt(x))

    FA=dict()

    for i in range(2,L+2):
        while x%i==0:
            FA[i]=FA.get(i,0)+1
            x=x//i

    if x!=1:
        FA[x]=FA.get(x,0)+1

    return FA


FACT=[1]
for i in range(1,2*10**5+1):
    FACT.append(FACT[-1]*i%mod)

FACT_INV=[pow(FACT[-1],mod-2,mod)]
for i in range(2*10**5,0,-1):
    FACT_INV.append(FACT_INV[-1]*i%mod)

FACT_INV.reverse()

def Combi(a,b):
    if 0<=b<=a:
        return FACT[a]*FACT_INV[b]*FACT_INV[a-b]%mod
    else:
        return 0


F1=fact(N)
F2=fact(K)

LIST=[]

for f in F1:
    if f in F2:
        LIST.append(f)

ANS=0
count=1

while LIST:
    #print(LIST)

    for s in LIST:
        ANS=(ANS+Combi(N//s,K//s)*count)%mod

    if len(LIST)==1:
        break
    else:
        LIST2=[]

        for i in range(len(LIST)):
            for j in range(i+1,len(LIST)):
                if LIST[i]*LIST[j]<=N:
                    LIST2.append(LIST[i]*LIST[j])

        LIST=LIST2
        count*=-1

print(ANS)