256595668

素因数分解:

$2^2\times 7^1\times {\mathrm{139}}^1\times {\mathrm{65929}}^1$

素因数の和:66079

約数の個数: 24

約数和(自身を含む): 516891200

約数和(自身を除く): 260295532

約数列:

[1, 2, 4, 7, 14, 28, 139, 278, 556, 973, 1946, 3892, 65929, 131858, 263716, 461503, 923006, 1846012, 9164131, 18328262, 36656524, 64148917, 128297834, 256595668]

約数ペア:

[(1, 256595668), (2, 128297834), (4, 64148917), (7, 36656524), (14, 18328262), (28, 9164131), (139, 1846012), (278, 923006), (556, 461503), (973, 263716), (1946, 131858), (3892, 65929)]