28371420

素因数分解:

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

素因数の和:145

約数の個数: 288

約数和(自身を含む): 113218560

約数和(自身を除く): 84847140

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 11, 12, 14, 15, 18, 20, 21, 22, 23, 28, 30, 33, 35, 36, 42, 44, 45, 46, 55, 60, 63, 66, 69, 70, 77, 84, 89, 90, 92, 99, 105, 110, 115, 126, 132, 138, 140, 154, 161, 165, 178, 180, 198, 207, 210, 220, 230, 231, 252, 253, 267, 276, 308, 315, 322, 330, 345, 356, 385, 396, 414, 420, 445, 460, 462, 483, 495, 506, 534, 623, 630, 644, 660, 690, 693, 759, 770, 801, 805, 828, 890, 924, 966, 979, 990, 1012, 1035, 1068, 1155, 1246, 1260, 1265, 1335, 1380, 1386, 1449, 1518, 1540, 1602, 1610, 1771, 1780, 1869, 1932, 1958, 1980, 2047, 2070, 2277, 2310, 2415, 2492, 2530, 2670, 2772, 2898, 2937, 3036, 3115, 3204, 3220, 3465, 3542, 3738, 3795, 3916, 4005, 4094, 4140, 4554, 4620, 4830, 4895, 5060, 5313, 5340, 5607, 5796, 5874, 6141, 6230, 6853, 6930, 7084, 7245, 7476, 7590, 8010, 8188, 8811, 8855, 9108, 9345, 9660, 9790, 10235, 10626, 11214, 11385, 11748, 12282, 12460, 13706, 13860, 14329, 14490, 14685, 15180, 15939, 16020, 17622, 17710, 18423, 18690, 19580, 20470, 20559, 21252, 22428, 22517, 22770, 24564, 26565, 27412, 28035, 28658, 28980, 29370, 30705, 31878, 34265, 35244, 35420, 36846, 37380, 40940, 41118, 42987, 44055, 45034, 45540, 53130, 56070, 57316, 58740, 61410, 61677, 63756, 67551, 68530, 71645, 73692, 79695, 82236, 85974, 88110, 90068, 92115, 102795, 106260, 112140, 112585, 122820, 123354, 128961, 135102, 137060, 143290, 157619, 159390, 171948, 176220, 184230, 202653, 205590, 214935, 225170, 246708, 257922, 270204, 286580, 308385, 315238, 318780, 337755, 368460, 405306, 411180, 429870, 450340, 472857, 515844, 616770, 630476, 644805, 675510, 788095, 810612, 859740, 945714, 1013265, 1233540, 1289610, 1351020, 1418571, 1576190, 1891428, 2026530, 2364285, 2579220, 2837142, 3152380, 4053060, 4728570, 5674284, 7092855, 9457140, 14185710, 28371420]

約数ペア:

[(1, 28371420), (2, 14185710), (3, 9457140), (4, 7092855), (5, 5674284), (6, 4728570), (7, 4053060), (9, 3152380), (10, 2837142), (11, 2579220), (12, 2364285), (14, 2026530), (15, 1891428), (18, 1576190), (20, 1418571), (21, 1351020), (22, 1289610), (23, 1233540), (28, 1013265), (30, 945714), (33, 859740), (35, 810612), (36, 788095), (42, 675510), (44, 644805), (45, 630476), (46, 616770), (55, 515844), (60, 472857), (63, 450340), (66, 429870), (69, 411180), (70, 405306), (77, 368460), (84, 337755), (89, 318780), (90, 315238), (92, 308385), (99, 286580), (105, 270204), (110, 257922), (115, 246708), (126, 225170), (132, 214935), (138, 205590), (140, 202653), (154, 184230), (161, 176220), (165, 171948), (178, 159390), (180, 157619), (198, 143290), (207, 137060), (210, 135102), (220, 128961), (230, 123354), (231, 122820), (252, 112585), (253, 112140), (267, 106260), (276, 102795), (308, 92115), (315, 90068), (322, 88110), (330, 85974), (345, 82236), (356, 79695), (385, 73692), (396, 71645), (414, 68530), (420, 67551), (445, 63756), (460, 61677), (462, 61410), (483, 58740), (495, 57316), (506, 56070), (534, 53130), (623, 45540), (630, 45034), (644, 44055), (660, 42987), (690, 41118), (693, 40940), (759, 37380), (770, 36846), (801, 35420), (805, 35244), (828, 34265), (890, 31878), (924, 30705), (966, 29370), (979, 28980), (990, 28658), (1012, 28035), (1035, 27412), (1068, 26565), (1155, 24564), (1246, 22770), (1260, 22517), (1265, 22428), (1335, 21252), (1380, 20559), (1386, 20470), (1449, 19580), (1518, 18690), (1540, 18423), (1602, 17710), (1610, 17622), (1771, 16020), (1780, 15939), (1869, 15180), (1932, 14685), (1958, 14490), (1980, 14329), (2047, 13860), (2070, 13706), (2277, 12460), (2310, 12282), (2415, 11748), (2492, 11385), (2530, 11214), (2670, 10626), (2772, 10235), (2898, 9790), (2937, 9660), (3036, 9345), (3115, 9108), (3204, 8855), (3220, 8811), (3465, 8188), (3542, 8010), (3738, 7590), (3795, 7476), (3916, 7245), (4005, 7084), (4094, 6930), (4140, 6853), (4554, 6230), (4620, 6141), (4830, 5874), (4895, 5796), (5060, 5607), (5313, 5340)]