128864660

素因数分解:

$2^2\times 5^1\times {\mathrm{953}}^1\times {\mathrm{6761}}^1$

素因数の和:7723

約数の個数: 24

約数和(自身を含む): 270939816

約数和(自身を除く): 142075156

約数列:

[1, 2, 4, 5, 10, 20, 953, 1906, 3812, 4765, 6761, 9530, 13522, 19060, 27044, 33805, 67610, 135220, 6443233, 12886466, 25772932, 32216165, 64432330, 128864660]

約数ペア:

[(1, 128864660), (2, 64432330), (4, 32216165), (5, 25772932), (10, 12886466), (20, 6443233), (953, 135220), (1906, 67610), (3812, 33805), (4765, 27044), (6761, 19060), (9530, 13522)]