81310235

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{20353}}^1$

素因数の和:20422

約数の個数: 16

約数和(自身を含む): 105515136

約数和(自身を除く): 24204901

約数列:

[1, 5, 17, 47, 85, 235, 799, 3995, 20353, 101765, 346001, 956591, 1730005, 4782955, 16262047, 81310235]

約数ペア:

[(1, 81310235), (5, 16262047), (17, 4782955), (47, 1730005), (85, 956591), (235, 346001), (799, 101765), (3995, 20353)]