128540588

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{67939}}^1$

素因数の和:67997

約数の個数: 24

約数和(自身を含む): 251106240

約数和(自身を除く): 122565652

約数列:

[1, 2, 4, 11, 22, 43, 44, 86, 172, 473, 946, 1892, 67939, 135878, 271756, 747329, 1494658, 2921377, 2989316, 5842754, 11685508, 32135147, 64270294, 128540588]

約数ペア:

[(1, 128540588), (2, 64270294), (4, 32135147), (11, 11685508), (22, 5842754), (43, 2989316), (44, 2921377), (86, 1494658), (172, 747329), (473, 271756), (946, 135878), (1892, 67939)]