16855760

素因数分解:

$2^4\times 5^1\times {\mathrm{109}}^1\times {\mathrm{1933}}^1$

素因数の和:2055

約数の個数: 40

約数和(自身を含む): 39569640

約数和(自身を除く): 22713880

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 109, 218, 436, 545, 872, 1090, 1744, 1933, 2180, 3866, 4360, 7732, 8720, 9665, 15464, 19330, 30928, 38660, 77320, 154640, 210697, 421394, 842788, 1053485, 1685576, 2106970, 3371152, 4213940, 8427880, 16855760]

約数ペア:

[(1, 16855760), (2, 8427880), (4, 4213940), (5, 3371152), (8, 2106970), (10, 1685576), (16, 1053485), (20, 842788), (40, 421394), (80, 210697), (109, 154640), (218, 77320), (436, 38660), (545, 30928), (872, 19330), (1090, 15464), (1744, 9665), (1933, 8720), (2180, 7732), (3866, 4360)]