81513608

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{557}}^1\times {\mathrm{1663}}^1$

素因数の和:2237

約数の個数: 32

約数和(自身を含む): 167132160

約数和(自身を除く): 85618552

約数列:

[1, 2, 4, 8, 11, 22, 44, 88, 557, 1114, 1663, 2228, 3326, 4456, 6127, 6652, 12254, 13304, 18293, 24508, 36586, 49016, 73172, 146344, 926291, 1852582, 3705164, 7410328, 10189201, 20378402, 40756804, 81513608]

約数ペア:

[(1, 81513608), (2, 40756804), (4, 20378402), (8, 10189201), (11, 7410328), (22, 3705164), (44, 1852582), (88, 926291), (557, 146344), (1114, 73172), (1663, 49016), (2228, 36586), (3326, 24508), (4456, 18293), (6127, 13304), (6652, 12254)]