12340985

素因数分解:

$5^1\times {\mathrm{79}}^1\times {\mathrm{157}}^1\times {\mathrm{199}}^1$

素因数の和:440

約数の個数: 16

約数和(自身を含む): 15168000

約数和(自身を除く): 2827015

約数列:

[1, 5, 79, 157, 199, 395, 785, 995, 12403, 15721, 31243, 62015, 78605, 156215, 2468197, 12340985]

約数ペア:

[(1, 12340985), (5, 2468197), (79, 156215), (157, 78605), (199, 62015), (395, 31243), (785, 15721), (995, 12403)]