28406740

素因数分解:

$2^2\times 5^1\times {\mathrm{311}}^1\times {\mathrm{4567}}^1$

素因数の和:4887

約数の個数: 24

約数和(自身を含む): 59859072

約数和(自身を除く): 31452332

約数列:

[1, 2, 4, 5, 10, 20, 311, 622, 1244, 1555, 3110, 4567, 6220, 9134, 18268, 22835, 45670, 91340, 1420337, 2840674, 5681348, 7101685, 14203370, 28406740]

約数ペア:

[(1, 28406740), (2, 14203370), (4, 7101685), (5, 5681348), (10, 2840674), (20, 1420337), (311, 91340), (622, 45670), (1244, 22835), (1555, 18268), (3110, 9134), (4567, 6220)]