138230540

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{987361}}^1$

素因数の和:987377

約数の個数: 24

約数和(自身を含む): 331753632

約数和(自身を除く): 193523092

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 987361, 1974722, 3949444, 4936805, 6911527, 9873610, 13823054, 19747220, 27646108, 34557635, 69115270, 138230540]

約数ペア:

[(1, 138230540), (2, 69115270), (4, 34557635), (5, 27646108), (7, 19747220), (10, 13823054), (14, 9873610), (20, 6911527), (28, 4936805), (35, 3949444), (70, 1974722), (140, 987361)]