217175

素因数分解:

$5^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{73}}^1$

素因数の和:107

約数の個数: 24

約数和(自身を含む): 330336

約数和(自身を除く): 113161

約数列:

[1, 5, 7, 17, 25, 35, 73, 85, 119, 175, 365, 425, 511, 595, 1241, 1825, 2555, 2975, 6205, 8687, 12775, 31025, 43435, 217175]

約数ペア:

[(1, 217175), (5, 43435), (7, 31025), (17, 12775), (25, 8687), (35, 6205), (73, 2975), (85, 2555), (119, 1825), (175, 1241), (365, 595), (425, 511)]