19605620

素因数分解:

$2^2\times 5^1\times {\mathrm{353}}^1\times {\mathrm{2777}}^1$

素因数の和:3139

約数の個数: 24

約数和(自身を含む): 41303304

約数和(自身を除く): 21697684

約数列:

[1, 2, 4, 5, 10, 20, 353, 706, 1412, 1765, 2777, 3530, 5554, 7060, 11108, 13885, 27770, 55540, 980281, 1960562, 3921124, 4901405, 9802810, 19605620]

約数ペア:

[(1, 19605620), (2, 9802810), (4, 4901405), (5, 3921124), (10, 1960562), (20, 980281), (353, 55540), (706, 27770), (1412, 13885), (1765, 11108), (2777, 7060), (3530, 5554)]