287531256

素因数分解:

$2^3\times 3^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{83}}^1\times {\mathrm{107}}^1$

素因数の和:289

約数の個数: 128

約数和(自身を含む): 783820800

約数和(自身を除く): 496289544

約数列:

[1, 2, 3, 4, 6, 8, 12, 19, 24, 38, 57, 71, 76, 83, 107, 114, 142, 152, 166, 213, 214, 228, 249, 284, 321, 332, 426, 428, 456, 498, 568, 642, 664, 852, 856, 996, 1284, 1349, 1577, 1704, 1992, 2033, 2568, 2698, 3154, 4047, 4066, 4731, 5396, 5893, 6099, 6308, 7597, 8094, 8132, 8881, 9462, 10792, 11786, 12198, 12616, 15194, 16188, 16264, 17679, 17762, 18924, 22791, 23572, 24396, 26643, 30388, 32376, 35358, 35524, 37848, 45582, 47144, 48792, 53286, 60776, 70716, 71048, 91164, 106572, 111967, 141432, 144343, 168739, 182328, 213144, 223934, 288686, 335901, 337478, 433029, 447868, 506217, 577372, 630551, 671802, 674956, 866058, 895736, 1012434, 1154744, 1261102, 1343604, 1349912, 1732116, 1891653, 2024868, 2522204, 2687208, 3464232, 3783306, 4049736, 5044408, 7566612, 11980469, 15133224, 23960938, 35941407, 47921876, 71882814, 95843752, 143765628, 287531256]

約数ペア:

[(1, 287531256), (2, 143765628), (3, 95843752), (4, 71882814), (6, 47921876), (8, 35941407), (12, 23960938), (19, 15133224), (24, 11980469), (38, 7566612), (57, 5044408), (71, 4049736), (76, 3783306), (83, 3464232), (107, 2687208), (114, 2522204), (142, 2024868), (152, 1891653), (166, 1732116), (213, 1349912), (214, 1343604), (228, 1261102), (249, 1154744), (284, 1012434), (321, 895736), (332, 866058), (426, 674956), (428, 671802), (456, 630551), (498, 577372), (568, 506217), (642, 447868), (664, 433029), (852, 337478), (856, 335901), (996, 288686), (1284, 223934), (1349, 213144), (1577, 182328), (1704, 168739), (1992, 144343), (2033, 141432), (2568, 111967), (2698, 106572), (3154, 91164), (4047, 71048), (4066, 70716), (4731, 60776), (5396, 53286), (5893, 48792), (6099, 47144), (6308, 45582), (7597, 37848), (8094, 35524), (8132, 35358), (8881, 32376), (9462, 30388), (10792, 26643), (11786, 24396), (12198, 23572), (12616, 22791), (15194, 18924), (16188, 17762), (16264, 17679)]