15990140

素因数分解:

$2^2\times 5^1\times {\mathrm{799507}}^1$

素因数の和:799516

約数の個数: 12

約数和(自身を含む): 33579336

約数和(自身を除く): 17589196

約数列:

[1, 2, 4, 5, 10, 20, 799507, 1599014, 3198028, 3997535, 7995070, 15990140]

約数ペア:

[(1, 15990140), (2, 7995070), (4, 3997535), (5, 3198028), (10, 1599014), (20, 799507)]