16681780

素因数分解:

$2^2\times 5^1\times {\mathrm{859}}^1\times {\mathrm{971}}^1$

素因数の和:1839

約数の個数: 24

約数和(自身を含む): 35108640

約数和(自身を除く): 18426860

約数列:

[1, 2, 4, 5, 10, 20, 859, 971, 1718, 1942, 3436, 3884, 4295, 4855, 8590, 9710, 17180, 19420, 834089, 1668178, 3336356, 4170445, 8340890, 16681780]

約数ペア:

[(1, 16681780), (2, 8340890), (4, 4170445), (5, 3336356), (10, 1668178), (20, 834089), (859, 19420), (971, 17180), (1718, 9710), (1942, 8590), (3436, 4855), (3884, 4295)]