217464280

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{494237}}^1$

素因数の和:494259

約数の個数: 32

約数和(自身を含む): 533777040

約数和(自身を除く): 316312760

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 494237, 988474, 1976948, 2471185, 3953896, 4942370, 5436607, 9884740, 10873214, 19769480, 21746428, 27183035, 43492856, 54366070, 108732140, 217464280]

約数ペア:

[(1, 217464280), (2, 108732140), (4, 54366070), (5, 43492856), (8, 27183035), (10, 21746428), (11, 19769480), (20, 10873214), (22, 9884740), (40, 5436607), (44, 4942370), (55, 3953896), (88, 2471185), (110, 1976948), (220, 988474), (440, 494237)]