81047564

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{139}}^1\times {\mathrm{11213}}^1$

素因数の和:11369

約数の個数: 24

約数和(自身を含む): 153856080

約数和(自身を除く): 72808516

約数列:

[1, 2, 4, 13, 26, 52, 139, 278, 556, 1807, 3614, 7228, 11213, 22426, 44852, 145769, 291538, 583076, 1558607, 3117214, 6234428, 20261891, 40523782, 81047564]

約数ペア:

[(1, 81047564), (2, 40523782), (4, 20261891), (13, 6234428), (26, 3117214), (52, 1558607), (139, 583076), (278, 291538), (556, 145769), (1807, 44852), (3614, 22426), (7228, 11213)]