81128728

素因数分解:

$2^3\times {\mathrm{23}}^1\times {\mathrm{271}}^1\times {\mathrm{1627}}^1$

素因数の和:1927

約数の個数: 32

約数和(自身を含む): 159413760

約数和(自身を除く): 78285032

約数列:

[1, 2, 4, 8, 23, 46, 92, 184, 271, 542, 1084, 1627, 2168, 3254, 6233, 6508, 12466, 13016, 24932, 37421, 49864, 74842, 149684, 299368, 440917, 881834, 1763668, 3527336, 10141091, 20282182, 40564364, 81128728]

約数ペア:

[(1, 81128728), (2, 40564364), (4, 20282182), (8, 10141091), (23, 3527336), (46, 1763668), (92, 881834), (184, 440917), (271, 299368), (542, 149684), (1084, 74842), (1627, 49864), (2168, 37421), (3254, 24932), (6233, 13016), (6508, 12466)]