20180558

素因数分解:

$2^1\times {\mathrm{73}}^1\times {\mathrm{277}}^1\times {\mathrm{499}}^1$

素因数の和:851

約数の個数: 16

約数和(自身を含む): 30858000

約数和(自身を除く): 10677442

約数列:

[1, 2, 73, 146, 277, 499, 554, 998, 20221, 36427, 40442, 72854, 138223, 276446, 10090279, 20180558]

約数ペア:

[(1, 20180558), (2, 10090279), (73, 276446), (146, 138223), (277, 72854), (499, 40442), (554, 36427), (998, 20221)]