19022680

素因数分解:

$2^3\times 5^1\times {\mathrm{109}}^1\times {\mathrm{4363}}^1$

素因数の和:4483

約数の個数: 32

約数和(自身を含む): 43203600

約数和(自身を除く): 24180920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 109, 218, 436, 545, 872, 1090, 2180, 4360, 4363, 8726, 17452, 21815, 34904, 43630, 87260, 174520, 475567, 951134, 1902268, 2377835, 3804536, 4755670, 9511340, 19022680]

約数ペア:

[(1, 19022680), (2, 9511340), (4, 4755670), (5, 3804536), (8, 2377835), (10, 1902268), (20, 951134), (40, 475567), (109, 174520), (218, 87260), (436, 43630), (545, 34904), (872, 21815), (1090, 17452), (2180, 8726), (4360, 4363)]