20127790

素因数分解:

$2^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{28349}}^1$

素因数の和:28427

約数の個数: 16

約数和(自身を含む): 36741600

約数和(自身を除く): 16613810

約数列:

[1, 2, 5, 10, 71, 142, 355, 710, 28349, 56698, 141745, 283490, 2012779, 4025558, 10063895, 20127790]

約数ペア:

[(1, 20127790), (2, 10063895), (5, 4025558), (10, 2012779), (71, 283490), (142, 141745), (355, 56698), (710, 28349)]