2817220

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{20123}}^1$

素因数の和:20139

約数の個数: 24

約数和(自身を含む): 6761664

約数和(自身を除く): 3944444

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 20123, 40246, 80492, 100615, 140861, 201230, 281722, 402460, 563444, 704305, 1408610, 2817220]

約数ペア:

[(1, 2817220), (2, 1408610), (4, 704305), (5, 563444), (7, 402460), (10, 281722), (14, 201230), (20, 140861), (28, 100615), (35, 80492), (70, 40246), (140, 20123)]