16819280

素因数分解:

$2^4\times 5^1\times {\mathrm{210241}}^1$

素因数の和:210254

約数の個数: 20

約数和(自身を含む): 39105012

約数和(自身を除く): 22285732

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 210241, 420482, 840964, 1051205, 1681928, 2102410, 3363856, 4204820, 8409640, 16819280]

約数ペア:

[(1, 16819280), (2, 8409640), (4, 4204820), (5, 3363856), (8, 2102410), (10, 1681928), (16, 1051205), (20, 840964), (40, 420482), (80, 210241)]