20199442820

素因数分解:

$2^2\times 5^1\times {\mathrm{131}}^1\times {\mathrm{7709711}}^1$

素因数の和:7709851

約数の個数: 24

約数和(自身を含む): 42742643328

約数和(自身を除く): 22543200508

約数列:

[1, 2, 4, 5, 10, 20, 131, 262, 524, 655, 1310, 2620, 7709711, 15419422, 30838844, 38548555, 77097110, 154194220, 1009972141, 2019944282, 4039888564, 5049860705, 10099721410, 20199442820]

約数ペア:

[(1, 20199442820), (2, 10099721410), (4, 5049860705), (5, 4039888564), (10, 2019944282), (20, 1009972141), (131, 154194220), (262, 77097110), (524, 38548555), (655, 30838844), (1310, 15419422), (2620, 7709711)]