51712880

素因数分解:

$2^4\times 5^1\times {\mathrm{646411}}^1$

素因数の和:646424

約数の個数: 20

約数和(自身を含む): 120232632

約数和(自身を除く): 68519752

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 646411, 1292822, 2585644, 3232055, 5171288, 6464110, 10342576, 12928220, 25856440, 51712880]

約数ペア:

[(1, 51712880), (2, 25856440), (4, 12928220), (5, 10342576), (8, 6464110), (10, 5171288), (16, 3232055), (20, 2585644), (40, 1292822), (80, 646411)]