12820220

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{91573}}^1$

素因数の和:91589

約数の個数: 24

約数和(自身を含む): 30768864

約数和(自身を除く): 17948644

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 91573, 183146, 366292, 457865, 641011, 915730, 1282022, 1831460, 2564044, 3205055, 6410110, 12820220]

約数ペア:

[(1, 12820220), (2, 6410110), (4, 3205055), (5, 2564044), (7, 1831460), (10, 1282022), (14, 915730), (20, 641011), (28, 457865), (35, 366292), (70, 183146), (140, 91573)]