18914280

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{89}}^1$

素因数の和:144

約数の個数: 256

約数和(自身を含む): 74649600

約数和(自身を除く): 55735320

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 11, 12, 14, 15, 20, 21, 22, 23, 24, 28, 30, 33, 35, 40, 42, 44, 46, 55, 56, 60, 66, 69, 70, 77, 84, 88, 89, 92, 105, 110, 115, 120, 132, 138, 140, 154, 161, 165, 168, 178, 184, 210, 220, 230, 231, 253, 264, 267, 276, 280, 308, 322, 330, 345, 356, 385, 420, 440, 445, 460, 462, 483, 506, 534, 552, 616, 623, 644, 660, 690, 712, 759, 770, 805, 840, 890, 920, 924, 966, 979, 1012, 1068, 1155, 1246, 1265, 1288, 1320, 1335, 1380, 1518, 1540, 1610, 1771, 1780, 1848, 1869, 1932, 1958, 2024, 2047, 2136, 2310, 2415, 2492, 2530, 2670, 2760, 2937, 3036, 3080, 3115, 3220, 3542, 3560, 3738, 3795, 3864, 3916, 4094, 4620, 4830, 4895, 4984, 5060, 5313, 5340, 5874, 6072, 6141, 6230, 6440, 6853, 7084, 7476, 7590, 7832, 8188, 8855, 9240, 9345, 9660, 9790, 10120, 10235, 10626, 10680, 11748, 12282, 12460, 13706, 14168, 14329, 14685, 14952, 15180, 16376, 17710, 18690, 19320, 19580, 20470, 20559, 21252, 22517, 23496, 24564, 24920, 26565, 27412, 28658, 29370, 30360, 30705, 34265, 35420, 37380, 39160, 40940, 41118, 42504, 42987, 45034, 49128, 53130, 54824, 57316, 58740, 61410, 67551, 68530, 70840, 71645, 74760, 81880, 82236, 85974, 90068, 102795, 106260, 112585, 114632, 117480, 122820, 135102, 137060, 143290, 157619, 164472, 171948, 180136, 205590, 212520, 214935, 225170, 245640, 270204, 274120, 286580, 315238, 337755, 343896, 411180, 429870, 450340, 472857, 540408, 573160, 630476, 675510, 788095, 822360, 859740, 900680, 945714, 1260952, 1351020, 1576190, 1719480, 1891428, 2364285, 2702040, 3152380, 3782856, 4728570, 6304760, 9457140, 18914280]

約数ペア:

[(1, 18914280), (2, 9457140), (3, 6304760), (4, 4728570), (5, 3782856), (6, 3152380), (7, 2702040), (8, 2364285), (10, 1891428), (11, 1719480), (12, 1576190), (14, 1351020), (15, 1260952), (20, 945714), (21, 900680), (22, 859740), (23, 822360), (24, 788095), (28, 675510), (30, 630476), (33, 573160), (35, 540408), (40, 472857), (42, 450340), (44, 429870), (46, 411180), (55, 343896), (56, 337755), (60, 315238), (66, 286580), (69, 274120), (70, 270204), (77, 245640), (84, 225170), (88, 214935), (89, 212520), (92, 205590), (105, 180136), (110, 171948), (115, 164472), (120, 157619), (132, 143290), (138, 137060), (140, 135102), (154, 122820), (161, 117480), (165, 114632), (168, 112585), (178, 106260), (184, 102795), (210, 90068), (220, 85974), (230, 82236), (231, 81880), (253, 74760), (264, 71645), (267, 70840), (276, 68530), (280, 67551), (308, 61410), (322, 58740), (330, 57316), (345, 54824), (356, 53130), (385, 49128), (420, 45034), (440, 42987), (445, 42504), (460, 41118), (462, 40940), (483, 39160), (506, 37380), (534, 35420), (552, 34265), (616, 30705), (623, 30360), (644, 29370), (660, 28658), (690, 27412), (712, 26565), (759, 24920), (770, 24564), (805, 23496), (840, 22517), (890, 21252), (920, 20559), (924, 20470), (966, 19580), (979, 19320), (1012, 18690), (1068, 17710), (1155, 16376), (1246, 15180), (1265, 14952), (1288, 14685), (1320, 14329), (1335, 14168), (1380, 13706), (1518, 12460), (1540, 12282), (1610, 11748), (1771, 10680), (1780, 10626), (1848, 10235), (1869, 10120), (1932, 9790), (1958, 9660), (2024, 9345), (2047, 9240), (2136, 8855), (2310, 8188), (2415, 7832), (2492, 7590), (2530, 7476), (2670, 7084), (2760, 6853), (2937, 6440), (3036, 6230), (3080, 6141), (3115, 6072), (3220, 5874), (3542, 5340), (3560, 5313), (3738, 5060), (3795, 4984), (3864, 4895), (3916, 4830), (4094, 4620)]