218780996

素因数分解:

$2^2\times 7^1\times {\mathrm{67}}^1\times {\mathrm{139}}^1\times {\mathrm{839}}^1$

素因数の和:1056

約数の個数: 48

約数和(自身を含む): 447820800

約数和(自身を除く): 229039804

約数列:

[1, 2, 4, 7, 14, 28, 67, 134, 139, 268, 278, 469, 556, 839, 938, 973, 1678, 1876, 1946, 3356, 3892, 5873, 9313, 11746, 18626, 23492, 37252, 56213, 65191, 112426, 116621, 130382, 224852, 233242, 260764, 393491, 466484, 786982, 816347, 1573964, 1632694, 3265388, 7813607, 15627214, 31254428, 54695249, 109390498, 218780996]

約数ペア:

[(1, 218780996), (2, 109390498), (4, 54695249), (7, 31254428), (14, 15627214), (28, 7813607), (67, 3265388), (134, 1632694), (139, 1573964), (268, 816347), (278, 786982), (469, 466484), (556, 393491), (839, 260764), (938, 233242), (973, 224852), (1678, 130382), (1876, 116621), (1946, 112426), (3356, 65191), (3892, 56213), (5873, 37252), (9313, 23492), (11746, 18626)]