20266288

素因数分解:

$2^4\times 7^1\times {\mathrm{180949}}^1$

素因数の和:180964

約数の個数: 20

約数和(自身を含む): 44875600

約数和(自身を除く): 24609312

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 180949, 361898, 723796, 1266643, 1447592, 2533286, 2895184, 5066572, 10133144, 20266288]

約数ペア:

[(1, 20266288), (2, 10133144), (4, 5066572), (7, 2895184), (8, 2533286), (14, 1447592), (16, 1266643), (28, 723796), (56, 361898), (112, 180949)]