81965128

素因数分解:

$2^3\times 7^1\times {\mathrm{131}}^1\times {\mathrm{11173}}^1$

素因数の和:11317

約数の個数: 32

約数和(自身を含む): 176996160

約数和(自身を除く): 95031032

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 131, 262, 524, 917, 1048, 1834, 3668, 7336, 11173, 22346, 44692, 78211, 89384, 156422, 312844, 625688, 1463663, 2927326, 5854652, 10245641, 11709304, 20491282, 40982564, 81965128]

約数ペア:

[(1, 81965128), (2, 40982564), (4, 20491282), (7, 11709304), (8, 10245641), (14, 5854652), (28, 2927326), (56, 1463663), (131, 625688), (262, 312844), (524, 156422), (917, 89384), (1048, 78211), (1834, 44692), (3668, 22346), (7336, 11173)]