20680852568

素因数分解:

$2^3\times {\mathrm{139}}^1\times {\mathrm{18597889}}^1$

素因数の和:18598034

約数の個数: 16

約数和(自身を含む): 39055569000

約数和(自身を除く): 18374716432

約数列:

[1, 2, 4, 8, 139, 278, 556, 1112, 18597889, 37195778, 74391556, 148783112, 2585106571, 5170213142, 10340426284, 20680852568]

約数ペア:

[(1, 20680852568), (2, 10340426284), (4, 5170213142), (8, 2585106571), (139, 148783112), (278, 74391556), (556, 37195778), (1112, 18597889)]