19777660

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{141269}}^1$

素因数の和:141285

約数の個数: 24

約数和(自身を含む): 47466720

約数和(自身を除く): 27689060

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 141269, 282538, 565076, 706345, 988883, 1412690, 1977766, 2825380, 3955532, 4944415, 9888830, 19777660]

約数ペア:

[(1, 19777660), (2, 9888830), (4, 4944415), (5, 3955532), (7, 2825380), (10, 1977766), (14, 1412690), (20, 988883), (28, 706345), (35, 565076), (70, 282538), (140, 141269)]