28080140

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{127637}}^1$

素因数の和:127657

約数の個数: 24

約数和(自身を含む): 64329552

約数和(自身を除く): 36249412

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 127637, 255274, 510548, 638185, 1276370, 1404007, 2552740, 2808014, 5616028, 7020035, 14040070, 28080140]

約数ペア:

[(1, 28080140), (2, 14040070), (4, 7020035), (5, 5616028), (10, 2808014), (11, 2552740), (20, 1404007), (22, 1276370), (44, 638185), (55, 510548), (110, 255274), (220, 127637)]