218657488

素因数分解:

$2^4\times 7^1\times {\mathrm{109}}^1\times {\mathrm{17911}}^1$

素因数の和:18035

約数の個数: 40

約数和(自身を含む): 488639360

約数和(自身を除く): 269981872

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 109, 112, 218, 436, 763, 872, 1526, 1744, 3052, 6104, 12208, 17911, 35822, 71644, 125377, 143288, 250754, 286576, 501508, 1003016, 1952299, 2006032, 3904598, 7809196, 13666093, 15618392, 27332186, 31236784, 54664372, 109328744, 218657488]

約数ペア:

[(1, 218657488), (2, 109328744), (4, 54664372), (7, 31236784), (8, 27332186), (14, 15618392), (16, 13666093), (28, 7809196), (56, 3904598), (109, 2006032), (112, 1952299), (218, 1003016), (436, 501508), (763, 286576), (872, 250754), (1526, 143288), (1744, 125377), (3052, 71644), (6104, 35822), (12208, 17911)]