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26 lines
548 B
26 lines
548 B
package cap3
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// Ex2 例2 求1000以内的完数，返回一个map，key为完数，value为其因数的数组
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func Ex2() map[int][]int {
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result := map[int][]int{}
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for i := range 1000 {
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if i < 2 {
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continue
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}
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sum := 0
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factors := make([]int, 0, 20)
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for j := 1; j <= i/2; j++ {
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if i%j == 0 {
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factors = append(factors, j)
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sum += j
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}
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}
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if sum == i {
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result[i] = factors
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}
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}
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return result
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}
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