28927780

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{206627}}^1$

素因数の和:206643

約数の個数: 24

約数和(自身を含む): 69427008

約数和(自身を除く): 40499228

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 206627, 413254, 826508, 1033135, 1446389, 2066270, 2892778, 4132540, 5785556, 7231945, 14463890, 28927780]

約数ペア:

[(1, 28927780), (2, 14463890), (4, 7231945), (5, 5785556), (7, 4132540), (10, 2892778), (14, 2066270), (20, 1446389), (28, 1033135), (35, 826508), (70, 413254), (140, 206627)]