28205020

素因数分解:

$2^2\times 5^1\times {\mathrm{193}}^1\times {\mathrm{7307}}^1$

素因数の和:7509

約数の個数: 24

約数和(自身を含む): 59545584

約数和(自身を除く): 31340564

約数列:

[1, 2, 4, 5, 10, 20, 193, 386, 772, 965, 1930, 3860, 7307, 14614, 29228, 36535, 73070, 146140, 1410251, 2820502, 5641004, 7051255, 14102510, 28205020]

約数ペア:

[(1, 28205020), (2, 14102510), (4, 7051255), (5, 5641004), (10, 2820502), (20, 1410251), (193, 146140), (386, 73070), (772, 36535), (965, 29228), (1930, 14614), (3860, 7307)]