256166140

素因数分解:

$2^2\times 5^1\times {\mathrm{607}}^1\times {\mathrm{21101}}^1$

素因数の和:21717

約数の個数: 24

約数和(自身を含む): 538860672

約数和(自身を除く): 282694532

約数列:

[1, 2, 4, 5, 10, 20, 607, 1214, 2428, 3035, 6070, 12140, 21101, 42202, 84404, 105505, 211010, 422020, 12808307, 25616614, 51233228, 64041535, 128083070, 256166140]

約数ペア:

[(1, 256166140), (2, 128083070), (4, 64041535), (5, 51233228), (10, 25616614), (20, 12808307), (607, 422020), (1214, 211010), (2428, 105505), (3035, 84404), (6070, 42202), (12140, 21101)]