254164540

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{1815461}}^1$

素因数の和:1815477

約数の個数: 24

約数和(自身を含む): 609995232

約数和(自身を除く): 355830692

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 1815461, 3630922, 7261844, 9077305, 12708227, 18154610, 25416454, 36309220, 50832908, 63541135, 127082270, 254164540]

約数ペア:

[(1, 254164540), (2, 127082270), (4, 63541135), (5, 50832908), (7, 36309220), (10, 25416454), (14, 18154610), (20, 12708227), (28, 9077305), (35, 7261844), (70, 3630922), (140, 1815461)]