20525390

素因数分解:

$2^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{28909}}^1$

素因数の和:28987

約数の個数: 16

約数和(自身を含む): 37467360

約数和(自身を除く): 16941970

約数列:

[1, 2, 5, 10, 71, 142, 355, 710, 28909, 57818, 144545, 289090, 2052539, 4105078, 10262695, 20525390]

約数ペア:

[(1, 20525390), (2, 10262695), (5, 4105078), (10, 2052539), (71, 289090), (142, 144545), (355, 57818), (710, 28909)]