278972008

素因数分解:

$2^3\times 7^1\times {\mathrm{37}}^1\times {\mathrm{134639}}^1$

素因数の和:134689

約数の個数: 32

約数和(自身を含む): 613958400

約数和(自身を除く): 334986392

約数列:

[1, 2, 4, 7, 8, 14, 28, 37, 56, 74, 148, 259, 296, 518, 1036, 2072, 134639, 269278, 538556, 942473, 1077112, 1884946, 3769892, 4981643, 7539784, 9963286, 19926572, 34871501, 39853144, 69743002, 139486004, 278972008]

約数ペア:

[(1, 278972008), (2, 139486004), (4, 69743002), (7, 39853144), (8, 34871501), (14, 19926572), (28, 9963286), (37, 7539784), (56, 4981643), (74, 3769892), (148, 1884946), (259, 1077112), (296, 942473), (518, 538556), (1036, 269278), (2072, 134639)]