128022680

素因数分解:

$2^3\times 5^1\times {\mathrm{109}}^1\times {\mathrm{29363}}^1$

素因数の和:29483

約数の個数: 32

約数和(自身を含む): 290703600

約数和(自身を除く): 162680920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 109, 218, 436, 545, 872, 1090, 2180, 4360, 29363, 58726, 117452, 146815, 234904, 293630, 587260, 1174520, 3200567, 6401134, 12802268, 16002835, 25604536, 32005670, 64011340, 128022680]

約数ペア:

[(1, 128022680), (2, 64011340), (4, 32005670), (5, 25604536), (8, 16002835), (10, 12802268), (20, 6401134), (40, 3200567), (109, 1174520), (218, 587260), (436, 293630), (545, 234904), (872, 146815), (1090, 117452), (2180, 58726), (4360, 29363)]