28706740

素因数分解:

$2^2\times 5^1\times {\mathrm{367}}^1\times {\mathrm{3911}}^1$

素因数の和:4287

約数の個数: 24

約数和(自身を含む): 60463872

約数和(自身を除く): 31757132

約数列:

[1, 2, 4, 5, 10, 20, 367, 734, 1468, 1835, 3670, 3911, 7340, 7822, 15644, 19555, 39110, 78220, 1435337, 2870674, 5741348, 7176685, 14353370, 28706740]

約数ペア:

[(1, 28706740), (2, 14353370), (4, 7176685), (5, 5741348), (10, 2870674), (20, 1435337), (367, 78220), (734, 39110), (1468, 19555), (1835, 15644), (3670, 7822), (3911, 7340)]