18555440

素因数分解:

$2^4\times 5^1\times {\mathrm{231943}}^1$

素因数の和:231956

約数の個数: 20

約数和(自身を含む): 43141584

約数和(自身を除く): 24586144

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 231943, 463886, 927772, 1159715, 1855544, 2319430, 3711088, 4638860, 9277720, 18555440]

約数ペア:

[(1, 18555440), (2, 9277720), (4, 4638860), (5, 3711088), (8, 2319430), (10, 1855544), (16, 1159715), (20, 927772), (40, 463886), (80, 231943)]