81264436

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{199}}^1\times {\mathrm{9281}}^1$

素因数の和:9495

約数の個数: 24

約数和(自身を含む): 155937600

約数和(自身を除く): 74673164

約数列:

[1, 2, 4, 11, 22, 44, 199, 398, 796, 2189, 4378, 8756, 9281, 18562, 37124, 102091, 204182, 408364, 1846919, 3693838, 7387676, 20316109, 40632218, 81264436]

約数ペア:

[(1, 81264436), (2, 40632218), (4, 20316109), (11, 7387676), (22, 3693838), (44, 1846919), (199, 408364), (398, 204182), (796, 102091), (2189, 37124), (4378, 18562), (8756, 9281)]