81440876

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{109}}^1\times {\mathrm{16981}}^1$

素因数の和:17105

約数の個数: 24

約数和(自身を含む): 156913680

約数和(自身を除く): 75472804

約数列:

[1, 2, 4, 11, 22, 44, 109, 218, 436, 1199, 2398, 4796, 16981, 33962, 67924, 186791, 373582, 747164, 1850929, 3701858, 7403716, 20360219, 40720438, 81440876]

約数ペア:

[(1, 81440876), (2, 40720438), (4, 20360219), (11, 7403716), (22, 3701858), (44, 1850929), (109, 747164), (218, 373582), (436, 186791), (1199, 67924), (2398, 33962), (4796, 16981)]