19368940

素因数分解:

$2^2\times 5^1\times {\mathrm{673}}^1\times {\mathrm{1439}}^1$

素因数の和:2121

約数の個数: 24

約数和(自身を含む): 40763520

約数和(自身を除く): 21394580

約数列:

[1, 2, 4, 5, 10, 20, 673, 1346, 1439, 2692, 2878, 3365, 5756, 6730, 7195, 13460, 14390, 28780, 968447, 1936894, 3873788, 4842235, 9684470, 19368940]

約数ペア:

[(1, 19368940), (2, 9684470), (4, 4842235), (5, 3873788), (10, 1936894), (20, 968447), (673, 28780), (1346, 14390), (1439, 13460), (2692, 7195), (2878, 6730), (3365, 5756)]