81721216

素因数分解:

$2^7\times {\mathrm{293}}^1\times {\mathrm{2179}}^1$

素因数の和:2486

約数の個数: 32

約数和(自身を含む): 163434600

約数和(自身を除く): 81713384

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 293, 586, 1172, 2179, 2344, 4358, 4688, 8716, 9376, 17432, 18752, 34864, 37504, 69728, 139456, 278912, 638447, 1276894, 2553788, 5107576, 10215152, 20430304, 40860608, 81721216]

約数ペア:

[(1, 81721216), (2, 40860608), (4, 20430304), (8, 10215152), (16, 5107576), (32, 2553788), (64, 1276894), (128, 638447), (293, 278912), (586, 139456), (1172, 69728), (2179, 37504), (2344, 34864), (4358, 18752), (4688, 17432), (8716, 9376)]