20000918

素因数分解:

$2^1\times 7^2\times {\mathrm{409}}^1\times {\mathrm{499}}^1$

素因数の和:924

約数の個数: 24

約数和(自身を含む): 35055000

約数和(自身を除く): 15054082

約数列:

[1, 2, 7, 14, 49, 98, 409, 499, 818, 998, 2863, 3493, 5726, 6986, 20041, 24451, 40082, 48902, 204091, 408182, 1428637, 2857274, 10000459, 20000918]

約数ペア:

[(1, 20000918), (2, 10000459), (7, 2857274), (14, 1428637), (49, 408182), (98, 204091), (409, 48902), (499, 40082), (818, 24451), (998, 20041), (2863, 6986), (3493, 5726)]