77897555

素因数分解:

$5^1\times {\mathrm{79}}^1\times {\mathrm{199}}^1\times {\mathrm{991}}^1$

素因数の和:1274

約数の個数: 16

約数和(自身を含む): 95232000

約数和(自身を除く): 17334445

約数列:

[1, 5, 79, 199, 395, 991, 995, 4955, 15721, 78289, 78605, 197209, 391445, 986045, 15579511, 77897555]

約数ペア:

[(1, 77897555), (5, 15579511), (79, 986045), (199, 391445), (395, 197209), (991, 78605), (995, 78289), (4955, 15721)]