20138432168

素因数分解:

$2^3\times {\mathrm{197}}^1\times {\mathrm{1709}}^1\times {\mathrm{7477}}^1$

素因数の和:9389

約数の個数: 32

約数和(自身を含む): 37978518600

約数和(自身を除く): 17840086432

約数列:

[1, 2, 4, 8, 197, 394, 788, 1576, 1709, 3418, 6836, 7477, 13672, 14954, 29908, 59816, 336673, 673346, 1346692, 1472969, 2693384, 2945938, 5891876, 11783752, 12778193, 25556386, 51112772, 102225544, 2517304021, 5034608042, 10069216084, 20138432168]

約数ペア:

[(1, 20138432168), (2, 10069216084), (4, 5034608042), (8, 2517304021), (197, 102225544), (394, 51112772), (788, 25556386), (1576, 12778193), (1709, 11783752), (3418, 5891876), (6836, 2945938), (7477, 2693384), (13672, 1472969), (14954, 1346692), (29908, 673346), (59816, 336673)]