18828220

素因数分解:

$2^2\times 5^1\times {\mathrm{347}}^1\times {\mathrm{2713}}^1$

素因数の和:3069

約数の個数: 24

約数和(自身を含む): 39667824

約数和(自身を除く): 20839604

約数列:

[1, 2, 4, 5, 10, 20, 347, 694, 1388, 1735, 2713, 3470, 5426, 6940, 10852, 13565, 27130, 54260, 941411, 1882822, 3765644, 4707055, 9414110, 18828220]

約数ペア:

[(1, 18828220), (2, 9414110), (4, 4707055), (5, 3765644), (10, 1882822), (20, 941411), (347, 54260), (694, 27130), (1388, 13565), (1735, 10852), (2713, 6940), (3470, 5426)]