80665564

素因数分解:

$2^2\times 7^2\times {\mathrm{19}}^1\times {\mathrm{21661}}^1$

素因数の和:21698

約数の個数: 36

約数和(自身を含む): 172862760

約数和(自身を除く): 92197196

約数列:

[1, 2, 4, 7, 14, 19, 28, 38, 49, 76, 98, 133, 196, 266, 532, 931, 1862, 3724, 21661, 43322, 86644, 151627, 303254, 411559, 606508, 823118, 1061389, 1646236, 2122778, 2880913, 4245556, 5761826, 11523652, 20166391, 40332782, 80665564]

約数ペア:

[(1, 80665564), (2, 40332782), (4, 20166391), (7, 11523652), (14, 5761826), (19, 4245556), (28, 2880913), (38, 2122778), (49, 1646236), (76, 1061389), (98, 823118), (133, 606508), (196, 411559), (266, 303254), (532, 151627), (931, 86644), (1862, 43322), (3724, 21661)]