128213178

素因数分解:

$2^1\times 3^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{107}}^1\times {\mathrm{457}}^1$

素因数の和:611

約数の個数: 64

約数和(自身を含む): 284912640

約数和(自身を除く): 156699462

約数列:

[1, 2, 3, 6, 19, 23, 38, 46, 57, 69, 107, 114, 138, 214, 321, 437, 457, 642, 874, 914, 1311, 1371, 2033, 2461, 2622, 2742, 4066, 4922, 6099, 7383, 8683, 10511, 12198, 14766, 17366, 21022, 26049, 31533, 46759, 48899, 52098, 63066, 93518, 97798, 140277, 146697, 199709, 280554, 293394, 399418, 599127, 929081, 1124677, 1198254, 1858162, 2249354, 2787243, 3374031, 5574486, 6748062, 21368863, 42737726, 64106589, 128213178]

約数ペア:

[(1, 128213178), (2, 64106589), (3, 42737726), (6, 21368863), (19, 6748062), (23, 5574486), (38, 3374031), (46, 2787243), (57, 2249354), (69, 1858162), (107, 1198254), (114, 1124677), (138, 929081), (214, 599127), (321, 399418), (437, 293394), (457, 280554), (642, 199709), (874, 146697), (914, 140277), (1311, 97798), (1371, 93518), (2033, 63066), (2461, 52098), (2622, 48899), (2742, 46759), (4066, 31533), (4922, 26049), (6099, 21022), (7383, 17366), (8683, 14766), (10511, 12198)]