281251520

素因数分解:

$2^6\times 5^1\times {\mathrm{11}}^1\times {\mathrm{79901}}^1$

素因数の和:79929

約数の個数: 56

約数和(自身を含む): 730623888

約数和(自身を除く): 449372368

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 55, 64, 80, 88, 110, 160, 176, 220, 320, 352, 440, 704, 880, 1760, 3520, 79901, 159802, 319604, 399505, 639208, 799010, 878911, 1278416, 1598020, 1757822, 2556832, 3196040, 3515644, 4394555, 5113664, 6392080, 7031288, 8789110, 12784160, 14062576, 17578220, 25568320, 28125152, 35156440, 56250304, 70312880, 140625760, 281251520]

約数ペア:

[(1, 281251520), (2, 140625760), (4, 70312880), (5, 56250304), (8, 35156440), (10, 28125152), (11, 25568320), (16, 17578220), (20, 14062576), (22, 12784160), (32, 8789110), (40, 7031288), (44, 6392080), (55, 5113664), (64, 4394555), (80, 3515644), (88, 3196040), (110, 2556832), (160, 1757822), (176, 1598020), (220, 1278416), (320, 878911), (352, 799010), (440, 639208), (704, 399505), (880, 319604), (1760, 159802), (3520, 79901)]