12820678

素因数分解:

$2^1\times {\mathrm{13}}^2\times {\mathrm{83}}^1\times {\mathrm{457}}^1$

素因数の和:568

約数の個数: 24

約数和(自身を含む): 21121128

約数和(自身を除く): 8300450

約数列:

[1, 2, 13, 26, 83, 166, 169, 338, 457, 914, 1079, 2158, 5941, 11882, 14027, 28054, 37931, 75862, 77233, 154466, 493103, 986206, 6410339, 12820678]

約数ペア:

[(1, 12820678), (2, 6410339), (13, 986206), (26, 493103), (83, 154466), (166, 77233), (169, 75862), (338, 37931), (457, 28054), (914, 14027), (1079, 11882), (2158, 5941)]