128435728

素因数分解:

$2^4\times {\mathrm{31}}^2\times {\mathrm{8353}}^1$

素因数の和:8423

約数の個数: 30

約数和(自身を含む): 257161182

約数和(自身を除く): 128725454

約数列:

[1, 2, 4, 8, 16, 31, 62, 124, 248, 496, 961, 1922, 3844, 7688, 8353, 15376, 16706, 33412, 66824, 133648, 258943, 517886, 1035772, 2071544, 4143088, 8027233, 16054466, 32108932, 64217864, 128435728]

約数ペア:

[(1, 128435728), (2, 64217864), (4, 32108932), (8, 16054466), (16, 8027233), (31, 4143088), (62, 2071544), (124, 1035772), (248, 517886), (496, 258943), (961, 133648), (1922, 66824), (3844, 33412), (7688, 16706), (8353, 15376)]