28508719220

素因数分解:

$2^2\times 5^1\times {\mathrm{1425435961}}^1$

素因数の和:1425435970

約数の個数: 12

約数和(自身を含む): 59868310404

約数和(自身を除く): 31359591184

約数列:

[1, 2, 4, 5, 10, 20, 1425435961, 2850871922, 5701743844, 7127179805, 14254359610, 28508719220]

約数ペア:

[(1, 28508719220), (2, 14254359610), (4, 7127179805), (5, 5701743844), (10, 2850871922), (20, 1425435961)]