12400998020

素因数分解:

$2^2\times 5^1\times {\mathrm{620049901}}^1$

素因数の和:620049910

約数の個数: 12

約数和(自身を含む): 26042095884

約数和(自身を除く): 13641097864

約数列:

[1, 2, 4, 5, 10, 20, 620049901, 1240099802, 2480199604, 3100249505, 6200499010, 12400998020]

約数ペア:

[(1, 12400998020), (2, 6200499010), (4, 3100249505), (5, 2480199604), (10, 1240099802), (20, 620049901)]