206524420

素因数分解:

$2^2\times 5^1\times {\mathrm{491}}^1\times {\mathrm{21031}}^1$

素因数の和:21531

約数の個数: 24

約数和(自身を含む): 434605248

約数和(自身を除く): 228080828

約数列:

[1, 2, 4, 5, 10, 20, 491, 982, 1964, 2455, 4910, 9820, 21031, 42062, 84124, 105155, 210310, 420620, 10326221, 20652442, 41304884, 51631105, 103262210, 206524420]

約数ペア:

[(1, 206524420), (2, 103262210), (4, 51631105), (5, 41304884), (10, 20652442), (20, 10326221), (491, 420620), (982, 210310), (1964, 105155), (2455, 84124), (4910, 42062), (9820, 21031)]