4978262020

素因数分解:

$2^2\times 5^1\times {\mathrm{248913101}}^1$

素因数の和:248913110

約数の個数: 12

約数和(自身を含む): 10454350284

約数和(自身を除く): 5476088264

約数列:

[1, 2, 4, 5, 10, 20, 248913101, 497826202, 995652404, 1244565505, 2489131010, 4978262020]

約数ペア:

[(1, 4978262020), (2, 2489131010), (4, 1244565505), (5, 995652404), (10, 497826202), (20, 248913101)]