20288912

素因数分解:

$2^4\times 7^1\times {\mathrm{107}}^1\times {\mathrm{1693}}^1$

素因数の和:1815

約数の個数: 40

約数和(自身を含む): 45372096

約数和(自身を除く): 25083184

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 107, 112, 214, 428, 749, 856, 1498, 1693, 1712, 2996, 3386, 5992, 6772, 11851, 11984, 13544, 23702, 27088, 47404, 94808, 181151, 189616, 362302, 724604, 1268057, 1449208, 2536114, 2898416, 5072228, 10144456, 20288912]

約数ペア:

[(1, 20288912), (2, 10144456), (4, 5072228), (7, 2898416), (8, 2536114), (14, 1449208), (16, 1268057), (28, 724604), (56, 362302), (107, 189616), (112, 181151), (214, 94808), (428, 47404), (749, 27088), (856, 23702), (1498, 13544), (1693, 11984), (1712, 11851), (2996, 6772), (3386, 5992)]