28511420

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{203653}}^1$

素因数の和:203669

約数の個数: 24

約数和(自身を含む): 68427744

約数和(自身を除く): 39916324

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 203653, 407306, 814612, 1018265, 1425571, 2036530, 2851142, 4073060, 5702284, 7127855, 14255710, 28511420]

約数ペア:

[(1, 28511420), (2, 14255710), (4, 7127855), (5, 5702284), (7, 4073060), (10, 2851142), (14, 2036530), (20, 1425571), (28, 1018265), (35, 814612), (70, 407306), (140, 203653)]