19975480

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{71341}}^1$

素因数の和:71359

約数の個数: 32

約数和(自身を含む): 51366240

約数和(自身を除く): 31390760

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 71341, 142682, 285364, 356705, 499387, 570728, 713410, 998774, 1426820, 1997548, 2496935, 2853640, 3995096, 4993870, 9987740, 19975480]

約数ペア:

[(1, 19975480), (2, 9987740), (4, 4993870), (5, 3995096), (7, 2853640), (8, 2496935), (10, 1997548), (14, 1426820), (20, 998774), (28, 713410), (35, 570728), (40, 499387), (56, 356705), (70, 285364), (140, 142682), (280, 71341)]