51765520

素因数分解:

$2^4\times 5^1\times {\mathrm{647069}}^1$

素因数の和:647082

約数の個数: 20

約数和(自身を含む): 120355020

約数和(自身を除く): 68589500

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 647069, 1294138, 2588276, 3235345, 5176552, 6470690, 10353104, 12941380, 25882760, 51765520]

約数ペア:

[(1, 51765520), (2, 25882760), (4, 12941380), (5, 10353104), (8, 6470690), (10, 5176552), (16, 3235345), (20, 2588276), (40, 1294138), (80, 647069)]