17720140

素因数分解:

$2^2\times 5^1\times {\mathrm{886007}}^1$

素因数の和:886016

約数の個数: 12

約数和(自身を含む): 37212336

約数和(自身を除く): 19492196

約数列:

[1, 2, 4, 5, 10, 20, 886007, 1772014, 3544028, 4430035, 8860070, 17720140]

約数ペア:

[(1, 17720140), (2, 8860070), (4, 4430035), (5, 3544028), (10, 1772014), (20, 886007)]