168555440

素因数分解:

$2^4\times 5^1\times {\mathrm{2106943}}^1$

素因数の和:2106956

約数の個数: 20

約数和(自身を含む): 391891584

約数和(自身を除く): 223336144

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 2106943, 4213886, 8427772, 10534715, 16855544, 21069430, 33711088, 42138860, 84277720, 168555440]

約数ペア:

[(1, 168555440), (2, 84277720), (4, 42138860), (5, 33711088), (8, 21069430), (10, 16855544), (16, 10534715), (20, 8427772), (40, 4213886), (80, 2106943)]