28931140

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{206651}}^1$

素因数の和:206667

約数の個数: 24

約数和(自身を含む): 69435072

約数和(自身を除く): 40503932

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 206651, 413302, 826604, 1033255, 1446557, 2066510, 2893114, 4133020, 5786228, 7232785, 14465570, 28931140]

約数ペア:

[(1, 28931140), (2, 14465570), (4, 7232785), (5, 5786228), (7, 4133020), (10, 2893114), (14, 2066510), (20, 1446557), (28, 1033255), (35, 826604), (70, 413302), (140, 206651)]