20317456

素因数分解:

$2^4\times {\mathrm{313}}^1\times {\mathrm{4057}}^1$

素因数の和:4378

約数の個数: 20

約数和(自身を含む): 39500572

約数和(自身を除く): 19183116

約数列:

[1, 2, 4, 8, 16, 313, 626, 1252, 2504, 4057, 5008, 8114, 16228, 32456, 64912, 1269841, 2539682, 5079364, 10158728, 20317456]

約数ペア:

[(1, 20317456), (2, 10158728), (4, 5079364), (8, 2539682), (16, 1269841), (313, 64912), (626, 32456), (1252, 16228), (2504, 8114), (4057, 5008)]