28235870

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{217199}}^1$

素因数の和:217219

約数の個数: 16

約数和(自身を含む): 54734400

約数和(自身を除く): 26498530

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 217199, 434398, 1085995, 2171990, 2823587, 5647174, 14117935, 28235870]

約数ペア:

[(1, 28235870), (2, 14117935), (5, 5647174), (10, 2823587), (13, 2171990), (26, 1085995), (65, 434398), (130, 217199)]