20994580

素因数分解:

$2^2\times 5^1\times {\mathrm{457}}^1\times {\mathrm{2297}}^1$

素因数の和:2763

約数の個数: 24

約数和(自身を含む): 44204328

約数和(自身を除く): 23209748

約数列:

[1, 2, 4, 5, 10, 20, 457, 914, 1828, 2285, 2297, 4570, 4594, 9140, 9188, 11485, 22970, 45940, 1049729, 2099458, 4198916, 5248645, 10497290, 20994580]

約数ペア:

[(1, 20994580), (2, 10497290), (4, 5248645), (5, 4198916), (10, 2099458), (20, 1049729), (457, 45940), (914, 22970), (1828, 11485), (2285, 9188), (2297, 9140), (4570, 4594)]