81259336

素因数分解:

$2^3\times {\mathrm{43}}^1\times {\mathrm{236219}}^1$

素因数の和:236268

約数の個数: 16

約数和(自身を含む): 155905200

約数和(自身を除く): 74645864

約数列:

[1, 2, 4, 8, 43, 86, 172, 344, 236219, 472438, 944876, 1889752, 10157417, 20314834, 40629668, 81259336]

約数ペア:

[(1, 81259336), (2, 40629668), (4, 20314834), (8, 10157417), (43, 1889752), (86, 944876), (172, 472438), (344, 236219)]