255042340

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{1821731}}^1$

素因数の和:1821747

約数の個数: 24

約数和(自身を含む): 612101952

約数和(自身を除く): 357059612

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 1821731, 3643462, 7286924, 9108655, 12752117, 18217310, 25504234, 36434620, 51008468, 63760585, 127521170, 255042340]

約数ペア:

[(1, 255042340), (2, 127521170), (4, 63760585), (5, 51008468), (7, 36434620), (10, 25504234), (14, 18217310), (20, 12752117), (28, 9108655), (35, 7286924), (70, 3643462), (140, 1821731)]