1368125

素因数分解:

$5^4\times {\mathrm{11}}^1\times {\mathrm{199}}^1$

素因数の和:230

約数の個数: 20

約数和(自身を含む): 1874400

約数和(自身を除く): 506275

約数列:

[1, 5, 11, 25, 55, 125, 199, 275, 625, 995, 1375, 2189, 4975, 6875, 10945, 24875, 54725, 124375, 273625, 1368125]

約数ペア:

[(1, 1368125), (5, 273625), (11, 124375), (25, 54725), (55, 24875), (125, 10945), (199, 6875), (275, 4975), (625, 2189), (995, 1375)]