28418195

素因数分解:

$5^1\times {\mathrm{13}}^4\times {\mathrm{199}}^1$

素因数の和:256

約数の個数: 20

約数和(自身を含む): 37129200

約数和(自身を除く): 8711005

約数列:

[1, 5, 13, 65, 169, 199, 845, 995, 2197, 2587, 10985, 12935, 28561, 33631, 142805, 168155, 437203, 2186015, 5683639, 28418195]

約数ペア:

[(1, 28418195), (5, 5683639), (13, 2186015), (65, 437203), (169, 168155), (199, 142805), (845, 33631), (995, 28561), (2197, 12935), (2587, 10985)]