842856440

素因数分解:

$2^3\times 5^1\times {\mathrm{2153}}^1\times {\mathrm{9787}}^1$

素因数の和:11951

約数の個数: 32

約数和(自身を含む): 1897501680

約数和(自身を除く): 1054645240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 2153, 4306, 8612, 9787, 10765, 17224, 19574, 21530, 39148, 43060, 48935, 78296, 86120, 97870, 195740, 391480, 21071411, 42142822, 84285644, 105357055, 168571288, 210714110, 421428220, 842856440]

約数ペア:

[(1, 842856440), (2, 421428220), (4, 210714110), (5, 168571288), (8, 105357055), (10, 84285644), (20, 42142822), (40, 21071411), (2153, 391480), (4306, 195740), (8612, 97870), (9787, 86120), (10765, 78296), (17224, 48935), (19574, 43060), (21530, 39148)]