20181568

素因数分解:

$2^6\times {\mathrm{11}}^1\times {\mathrm{109}}^1\times {\mathrm{263}}^1$

素因数の和:395

約数の個数: 56

約数和(自身を含む): 44256960

約数和(自身を除く): 24075392

約数列:

[1, 2, 4, 8, 11, 16, 22, 32, 44, 64, 88, 109, 176, 218, 263, 352, 436, 526, 704, 872, 1052, 1199, 1744, 2104, 2398, 2893, 3488, 4208, 4796, 5786, 6976, 8416, 9592, 11572, 16832, 19184, 23144, 28667, 38368, 46288, 57334, 76736, 92576, 114668, 185152, 229336, 315337, 458672, 630674, 917344, 1261348, 1834688, 2522696, 5045392, 10090784, 20181568]

約数ペア:

[(1, 20181568), (2, 10090784), (4, 5045392), (8, 2522696), (11, 1834688), (16, 1261348), (22, 917344), (32, 630674), (44, 458672), (64, 315337), (88, 229336), (109, 185152), (176, 114668), (218, 92576), (263, 76736), (352, 57334), (436, 46288), (526, 38368), (704, 28667), (872, 23144), (1052, 19184), (1199, 16832), (1744, 11572), (2104, 9592), (2398, 8416), (2893, 6976), (3488, 5786), (4208, 4796)]