208545545

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{188729}}^1$

素因数の和:188764

約数の個数: 16

約数和(自身を含む): 285359760

約数和(自身を除く): 76814215

約数列:

[1, 5, 13, 17, 65, 85, 221, 1105, 188729, 943645, 2453477, 3208393, 12267385, 16041965, 41709109, 208545545]

約数ペア:

[(1, 208545545), (5, 41709109), (13, 16041965), (17, 12267385), (65, 3208393), (85, 2453477), (221, 943645), (1105, 188729)]