18280580

素因数分解:

$2^2\times 5^1\times {\mathrm{311}}^1\times {\mathrm{2939}}^1$

素因数の和:3259

約数の個数: 24

約数和(自身を含む): 38525760

約数和(自身を除く): 20245180

約数列:

[1, 2, 4, 5, 10, 20, 311, 622, 1244, 1555, 2939, 3110, 5878, 6220, 11756, 14695, 29390, 58780, 914029, 1828058, 3656116, 4570145, 9140290, 18280580]

約数ペア:

[(1, 18280580), (2, 9140290), (4, 4570145), (5, 3656116), (10, 1828058), (20, 914029), (311, 58780), (622, 29390), (1244, 14695), (1555, 11756), (2939, 6220), (3110, 5878)]