20320484

素因数分解:

$2^2\times {\mathrm{71}}^1\times {\mathrm{71551}}^1$

素因数の和:71626

約数の個数: 12

約数和(自身を含む): 36062208

約数和(自身を除く): 15741724

約数列:

[1, 2, 4, 71, 142, 284, 71551, 143102, 286204, 5080121, 10160242, 20320484]

約数ペア:

[(1, 20320484), (2, 10160242), (4, 5080121), (71, 286204), (142, 143102), (284, 71551)]