20123286248

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{193493137}}^1$

素因数の和:193493156

約数の個数: 16

約数和(自身を含む): 40633558980

約数和(自身を除く): 20510272732

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 193493137, 386986274, 773972548, 1547945096, 2515410781, 5030821562, 10061643124, 20123286248]

約数ペア:

[(1, 20123286248), (2, 10061643124), (4, 5030821562), (8, 2515410781), (13, 1547945096), (26, 773972548), (52, 386986274), (104, 193493137)]