997985

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{59}}^1\times {\mathrm{199}}^1$

素因数の和:280

約数の個数: 16

約数和(自身を含む): 1296000

約数和(自身を除く): 298015

約数列:

[1, 5, 17, 59, 85, 199, 295, 995, 1003, 3383, 5015, 11741, 16915, 58705, 199597, 997985]

約数ペア:

[(1, 997985), (5, 199597), (17, 58705), (59, 16915), (85, 11741), (199, 5015), (295, 3383), (995, 1003)]