201272085

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{638959}}^1$

素因数の和:638977

約数の個数: 24

約数和(自身を含む): 398711040

約数和(自身を除く): 197438955

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 63, 105, 315, 638959, 1916877, 3194795, 4472713, 5750631, 9584385, 13418139, 22363565, 28753155, 40254417, 67090695, 201272085]

約数ペア:

[(1, 201272085), (3, 67090695), (5, 40254417), (7, 28753155), (9, 22363565), (15, 13418139), (21, 9584385), (35, 5750631), (45, 4472713), (63, 3194795), (105, 1916877), (315, 638959)]