661646128

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{289181}}^1$

素因数の和:289213

約数の個数: 40

約数和(自身を含む): 1506059856

約数和(自身を除く): 844413728

約数列:

[1, 2, 4, 8, 11, 13, 16, 22, 26, 44, 52, 88, 104, 143, 176, 208, 286, 572, 1144, 2288, 289181, 578362, 1156724, 2313448, 3180991, 3759353, 4626896, 6361982, 7518706, 12723964, 15037412, 25447928, 30074824, 41352883, 50895856, 60149648, 82705766, 165411532, 330823064, 661646128]

約数ペア:

[(1, 661646128), (2, 330823064), (4, 165411532), (8, 82705766), (11, 60149648), (13, 50895856), (16, 41352883), (22, 30074824), (26, 25447928), (44, 15037412), (52, 12723964), (88, 7518706), (104, 6361982), (143, 4626896), (176, 3759353), (208, 3180991), (286, 2313448), (572, 1156724), (1144, 578362), (2288, 289181)]