18625288

素因数分解:

$2^3\times {\mathrm{11}}^2\times {\mathrm{71}}^1\times {\mathrm{271}}^1$

素因数の和:370

約数の個数: 48

約数和(自身を含む): 39070080

約数和(自身を除く): 20444792

約数列:

[1, 2, 4, 8, 11, 22, 44, 71, 88, 121, 142, 242, 271, 284, 484, 542, 568, 781, 968, 1084, 1562, 2168, 2981, 3124, 5962, 6248, 8591, 11924, 17182, 19241, 23848, 32791, 34364, 38482, 65582, 68728, 76964, 131164, 153928, 211651, 262328, 423302, 846604, 1693208, 2328161, 4656322, 9312644, 18625288]

約数ペア:

[(1, 18625288), (2, 9312644), (4, 4656322), (8, 2328161), (11, 1693208), (22, 846604), (44, 423302), (71, 262328), (88, 211651), (121, 153928), (142, 131164), (242, 76964), (271, 68728), (284, 65582), (484, 38482), (542, 34364), (568, 32791), (781, 23848), (968, 19241), (1084, 17182), (1562, 11924), (2168, 8591), (2981, 6248), (3124, 5962)]