198808280

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{451837}}^1$

素因数の和:451859

約数の個数: 32

約数和(自身を含む): 487985040

約数和(自身を除く): 289176760

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 451837, 903674, 1807348, 2259185, 3614696, 4518370, 4970207, 9036740, 9940414, 18073480, 19880828, 24851035, 39761656, 49702070, 99404140, 198808280]

約数ペア:

[(1, 198808280), (2, 99404140), (4, 49702070), (5, 39761656), (8, 24851035), (10, 19880828), (11, 18073480), (20, 9940414), (22, 9036740), (40, 4970207), (44, 4518370), (55, 3614696), (88, 2259185), (110, 1807348), (220, 903674), (440, 451837)]