20802783205

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{263}}^1\times {\mathrm{687809}}^1$

素因数の和:688100

約数の個数: 16

約数和(自身を含む): 26147784960

約数和(自身を除く): 5345001755

約数列:

[1, 5, 23, 115, 263, 1315, 6049, 30245, 687809, 3439045, 15819607, 79098035, 180893767, 904468835, 4160556641, 20802783205]

約数ペア:

[(1, 20802783205), (5, 4160556641), (23, 904468835), (115, 180893767), (263, 79098035), (1315, 15819607), (6049, 3439045), (30245, 687809)]