81670595

素因数分解:

$5^1\times {\mathrm{79}}^1\times {\mathrm{199}}^1\times {\mathrm{1039}}^1$

素因数の和:1322

約数の個数: 16

約数和(自身を含む): 99840000

約数和(自身を除く): 18169405

約数列:

[1, 5, 79, 199, 395, 995, 1039, 5195, 15721, 78605, 82081, 206761, 410405, 1033805, 16334119, 81670595]

約数ペア:

[(1, 81670595), (5, 16334119), (79, 1033805), (199, 410405), (395, 206761), (995, 82081), (1039, 78605), (5195, 15721)]