81699128

素因数分解:

$2^3\times 7^1\times {\mathrm{23}}^1\times {\mathrm{137}}^1\times {\mathrm{463}}^1$

素因数の和:636

約数の個数: 64

約数和(自身を含む): 184412160

約数和(自身を除く): 102713032

約数列:

[1, 2, 4, 7, 8, 14, 23, 28, 46, 56, 92, 137, 161, 184, 274, 322, 463, 548, 644, 926, 959, 1096, 1288, 1852, 1918, 3151, 3241, 3704, 3836, 6302, 6482, 7672, 10649, 12604, 12964, 21298, 22057, 25208, 25928, 42596, 44114, 63431, 74543, 85192, 88228, 126862, 149086, 176456, 253724, 298172, 444017, 507448, 596344, 888034, 1458913, 1776068, 2917826, 3552136, 5835652, 10212391, 11671304, 20424782, 40849564, 81699128]

約数ペア:

[(1, 81699128), (2, 40849564), (4, 20424782), (7, 11671304), (8, 10212391), (14, 5835652), (23, 3552136), (28, 2917826), (46, 1776068), (56, 1458913), (92, 888034), (137, 596344), (161, 507448), (184, 444017), (274, 298172), (322, 253724), (463, 176456), (548, 149086), (644, 126862), (926, 88228), (959, 85192), (1096, 74543), (1288, 63431), (1852, 44114), (1918, 42596), (3151, 25928), (3241, 25208), (3704, 22057), (3836, 21298), (6302, 12964), (6482, 12604), (7672, 10649)]