8880280

素因数分解:

$2^3\times 5^1\times {\mathrm{222007}}^1$

素因数の和:222018

約数の個数: 16

約数和(自身を含む): 19980720

約数和(自身を除く): 11100440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 222007, 444014, 888028, 1110035, 1776056, 2220070, 4440140, 8880280]

約数ペア:

[(1, 8880280), (2, 4440140), (4, 2220070), (5, 1776056), (8, 1110035), (10, 888028), (20, 444014), (40, 222007)]