639115

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{73}}^1\times {\mathrm{103}}^1$

素因数の和:198

約数の個数: 16

約数和(自身を含む): 831168

約数和(自身を除く): 192053

約数列:

[1, 5, 17, 73, 85, 103, 365, 515, 1241, 1751, 6205, 7519, 8755, 37595, 127823, 639115]

約数ペア:

[(1, 639115), (5, 127823), (17, 37595), (73, 8755), (85, 7519), (103, 6205), (365, 1751), (515, 1241)]