256500342

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{307}}^1\times {\mathrm{349}}^1$

素因数の和:690

約数の個数: 96

約数和(自身を含む): 672672000

約数和(自身を除く): 416171658

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 19, 21, 38, 42, 57, 63, 114, 126, 133, 171, 266, 307, 342, 349, 399, 614, 698, 798, 921, 1047, 1197, 1842, 2094, 2149, 2394, 2443, 2763, 3141, 4298, 4886, 5526, 5833, 6282, 6447, 6631, 7329, 11666, 12894, 13262, 14658, 17499, 19341, 19893, 21987, 34998, 38682, 39786, 40831, 43974, 46417, 52497, 59679, 81662, 92834, 104994, 107143, 119358, 122493, 139251, 214286, 244986, 278502, 321429, 367479, 417753, 642858, 734958, 750001, 835506, 964287, 1500002, 1928574, 2035717, 2250003, 4071434, 4500006, 6107151, 6750009, 12214302, 13500018, 14250019, 18321453, 28500038, 36642906, 42750057, 85500114, 128250171, 256500342]

約数ペア:

[(1, 256500342), (2, 128250171), (3, 85500114), (6, 42750057), (7, 36642906), (9, 28500038), (14, 18321453), (18, 14250019), (19, 13500018), (21, 12214302), (38, 6750009), (42, 6107151), (57, 4500006), (63, 4071434), (114, 2250003), (126, 2035717), (133, 1928574), (171, 1500002), (266, 964287), (307, 835506), (342, 750001), (349, 734958), (399, 642858), (614, 417753), (698, 367479), (798, 321429), (921, 278502), (1047, 244986), (1197, 214286), (1842, 139251), (2094, 122493), (2149, 119358), (2394, 107143), (2443, 104994), (2763, 92834), (3141, 81662), (4298, 59679), (4886, 52497), (5526, 46417), (5833, 43974), (6282, 40831), (6447, 39786), (6631, 38682), (7329, 34998), (11666, 21987), (12894, 19893), (13262, 19341), (14658, 17499)]