8080720

素因数分解:

$2^4\times 5^1\times {\mathrm{101009}}^1$

素因数の和:101022

約数の個数: 20

約数和(自身を含む): 18787860

約数和(自身を除く): 10707140

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 101009, 202018, 404036, 505045, 808072, 1010090, 1616144, 2020180, 4040360, 8080720]

約数ペア:

[(1, 8080720), (2, 4040360), (4, 2020180), (5, 1616144), (8, 1010090), (10, 808072), (16, 505045), (20, 404036), (40, 202018), (80, 101009)]