18136220

素因数分解:

$2^2\times 5^1\times {\mathrm{709}}^1\times {\mathrm{1279}}^1$

素因数の和:1997

約数の個数: 24

約数和(自身を含む): 38169600

約数和(自身を除く): 20033380

約数列:

[1, 2, 4, 5, 10, 20, 709, 1279, 1418, 2558, 2836, 3545, 5116, 6395, 7090, 12790, 14180, 25580, 906811, 1813622, 3627244, 4534055, 9068110, 18136220]

約数ペア:

[(1, 18136220), (2, 9068110), (4, 4534055), (5, 3627244), (10, 1813622), (20, 906811), (709, 25580), (1279, 14180), (1418, 12790), (2558, 7090), (2836, 6395), (3545, 5116)]