dsalgo 0.3.10

A package for Datastructures and Algorithms.
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use crate::sum_of_multiples_sum_with_smart_formula::sum_of_multiples_sum;

/// \sum_{i=1}^n{i \cdot |divisors(i)|}

pub fn sum_of_divisors_count_times_i(n: u64) -> u64 {
    sum_of_multiples_sum(n)
}

#[cfg(test)]

mod tests {

    #[test]

    fn test() {
        use super::*;

        assert_eq!(sum_of_divisors_count_times_i(10000000), 838627288460105);
    }
}