138192460

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{987089}}^1$

素因数の和:987105

約数の個数: 24

約数和(自身を含む): 331662240

約数和(自身を除く): 193469780

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 987089, 1974178, 3948356, 4935445, 6909623, 9870890, 13819246, 19741780, 27638492, 34548115, 69096230, 138192460]

約数ペア:

[(1, 138192460), (2, 69096230), (4, 34548115), (5, 27638492), (7, 19741780), (10, 13819246), (14, 9870890), (20, 6909623), (28, 4935445), (35, 3948356), (70, 1974178), (140, 987089)]