28511860

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{109661}}^1$

素因数の和:109683

約数の個数: 24

約数和(自身を含む): 64481256

約数和(自身を除く): 35969396

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 109661, 219322, 438644, 548305, 1096610, 1425593, 2193220, 2851186, 5702372, 7127965, 14255930, 28511860]

約数ペア:

[(1, 28511860), (2, 14255930), (4, 7127965), (5, 5702372), (10, 2851186), (13, 2193220), (20, 1425593), (26, 1096610), (52, 548305), (65, 438644), (130, 219322), (260, 109661)]