20195304880

素因数分解:

$2^4\times 5^1\times {\mathrm{653}}^1\times {\mathrm{386587}}^1$

素因数の和:387253

約数の個数: 40

約数和(自身を含む): 47026110672

約数和(自身を除く): 26830805792

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 653, 1306, 2612, 3265, 5224, 6530, 10448, 13060, 26120, 52240, 386587, 773174, 1546348, 1932935, 3092696, 3865870, 6185392, 7731740, 15463480, 30926960, 252441311, 504882622, 1009765244, 1262206555, 2019530488, 2524413110, 4039060976, 5048826220, 10097652440, 20195304880]

約数ペア:

[(1, 20195304880), (2, 10097652440), (4, 5048826220), (5, 4039060976), (8, 2524413110), (10, 2019530488), (16, 1262206555), (20, 1009765244), (40, 504882622), (80, 252441311), (653, 30926960), (1306, 15463480), (2612, 7731740), (3265, 6185392), (5224, 3865870), (6530, 3092696), (10448, 1932935), (13060, 1546348), (26120, 773174), (52240, 386587)]