391345

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{83}}^1$

素因数の和:152

約数の個数: 16

約数和(自身を含む): 508032

約数和(自身を除く): 116687

約数列:

[1, 5, 23, 41, 83, 115, 205, 415, 943, 1909, 3403, 4715, 9545, 17015, 78269, 391345]

約数ペア:

[(1, 391345), (5, 78269), (23, 17015), (41, 9545), (83, 4715), (115, 3403), (205, 1909), (415, 943)]