20321796790

素因数分解:

$2^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{28622249}}^1$

素因数の和:28622327

約数の個数: 16

約数和(自身を含む): 37094436000

約数和(自身を除く): 16772639210

約数列:

[1, 2, 5, 10, 71, 142, 355, 710, 28622249, 57244498, 143111245, 286222490, 2032179679, 4064359358, 10160898395, 20321796790]

約数ペア:

[(1, 20321796790), (2, 10160898395), (5, 4064359358), (10, 2032179679), (71, 286222490), (142, 143111245), (355, 57244498), (710, 28622249)]