1
 2
 3
 4
 5
 6
 7
 8
 9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
#include <cstdio>


bool is_valid(const long long a, const long long b)
{
    if(a < 2LL)
        return false;
    if(b < 2LL)
        return false;

    return true;
}


long long count(long long m)
{
    --m;

    if(m < 6LL)
        return 0LL;

    long long result = 0LL;

    for(long long a = 1LL; a*a <= m; ++a)
    {
        if(m % a != 0LL)
            continue;

        if(is_valid(a, m / a - 1LL))
            ++result;

        if((a*a != m) && is_valid(m / a, a-1LL))
            ++result;
    }

    return result;
}


int main()
{
    long long n;
    scanf("%lld", &n);

    long long result = 0LL;

    for(long long x = 1LL; x*x <= n; ++x)
    {
        if(n % x == 0LL)
        {
            result += count(n/x);

            if(x*x != n)
                result += count(x);
        }
    }

    printf("%lld\n", result);
}