28677020

素因数分解:

$2^2\times 5^1\times {\mathrm{839}}^1\times {\mathrm{1709}}^1$

素因数の和:2557

約数の個数: 24

約数和(自身を含む): 60328800

約数和(自身を除く): 31651780

約数列:

[1, 2, 4, 5, 10, 20, 839, 1678, 1709, 3356, 3418, 4195, 6836, 8390, 8545, 16780, 17090, 34180, 1433851, 2867702, 5735404, 7169255, 14338510, 28677020]

約数ペア:

[(1, 28677020), (2, 14338510), (4, 7169255), (5, 5735404), (10, 2867702), (20, 1433851), (839, 34180), (1678, 17090), (1709, 16780), (3356, 8545), (3418, 8390), (4195, 6836)]