199124375

素因数分解:

$5^4\times {\mathrm{199}}^1\times {\mathrm{1601}}^1$

素因数の和:1820

約数の個数: 20

約数和(自身を含む): 250232400

約数和(自身を除く): 51108025

約数列:

[1, 5, 25, 125, 199, 625, 995, 1601, 4975, 8005, 24875, 40025, 124375, 200125, 318599, 1000625, 1592995, 7964975, 39824875, 199124375]

約数ペア:

[(1, 199124375), (5, 39824875), (25, 7964975), (125, 1592995), (199, 1000625), (625, 318599), (995, 200125), (1601, 124375), (4975, 40025), (8005, 24875)]