9825625

素因数分解:

$5^4\times {\mathrm{79}}^1\times {\mathrm{199}}^1$

素因数の和:298

約数の個数: 20

約数和(自身を含む): 12496000

約数和(自身を除く): 2670375

約数列:

[1, 5, 25, 79, 125, 199, 395, 625, 995, 1975, 4975, 9875, 15721, 24875, 49375, 78605, 124375, 393025, 1965125, 9825625]

約数ペア:

[(1, 9825625), (5, 1965125), (25, 393025), (79, 124375), (125, 78605), (199, 49375), (395, 24875), (625, 15721), (995, 9875), (1975, 4975)]