28206040

素因数分解:

$2^3\times 5^1\times {\mathrm{457}}^1\times {\mathrm{1543}}^1$

素因数の和:2011

約数の個数: 32

約数和(自身を含む): 63643680

約数和(自身を除く): 35437640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 457, 914, 1543, 1828, 2285, 3086, 3656, 4570, 6172, 7715, 9140, 12344, 15430, 18280, 30860, 61720, 705151, 1410302, 2820604, 3525755, 5641208, 7051510, 14103020, 28206040]

約数ペア:

[(1, 28206040), (2, 14103020), (4, 7051510), (5, 5641208), (8, 3525755), (10, 2820604), (20, 1410302), (40, 705151), (457, 61720), (914, 30860), (1543, 18280), (1828, 15430), (2285, 12344), (3086, 9140), (3656, 7715), (4570, 6172)]