208047307775

素因数分解:

$5^2\times {\mathrm{79}}^1\times {\mathrm{105340409}}^1$

素因数の和:105340498

約数の個数: 12

約数和(自身を含む): 261244216800

約数和(自身を除く): 53196909025

約数列:

[1, 5, 25, 79, 395, 1975, 105340409, 526702045, 2633510225, 8321892311, 41609461555, 208047307775]

約数ペア:

[(1, 208047307775), (5, 41609461555), (25, 8321892311), (79, 2633510225), (395, 526702045), (1975, 105340409)]