20424880

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{36473}}^1$

素因数の和:36493

約数の個数: 40

約数和(自身を含む): 54273312

約数和(自身を除く): 33848432

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 36473, 72946, 145892, 182365, 255311, 291784, 364730, 510622, 583568, 729460, 1021244, 1276555, 1458920, 2042488, 2553110, 2917840, 4084976, 5106220, 10212440, 20424880]

約数ペア:

[(1, 20424880), (2, 10212440), (4, 5106220), (5, 4084976), (7, 2917840), (8, 2553110), (10, 2042488), (14, 1458920), (16, 1276555), (20, 1021244), (28, 729460), (35, 583568), (40, 510622), (56, 364730), (70, 291784), (80, 255311), (112, 182365), (140, 145892), (280, 72946), (560, 36473)]