81050760

素因数分解:

$2^3\times 3^3\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{151}}^1$

素因数の和:249

約数の個数: 256

約数和(自身を含む): 315187200

約数和(自身を除く): 234136440

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 18, 20, 21, 24, 27, 28, 30, 35, 36, 40, 42, 45, 54, 56, 60, 63, 70, 71, 72, 84, 90, 105, 108, 120, 126, 135, 140, 142, 151, 168, 180, 189, 210, 213, 216, 252, 270, 280, 284, 302, 315, 355, 360, 378, 420, 426, 453, 497, 504, 540, 568, 604, 630, 639, 710, 755, 756, 840, 852, 906, 945, 994, 1057, 1065, 1080, 1208, 1260, 1278, 1359, 1420, 1491, 1510, 1512, 1704, 1812, 1890, 1917, 1988, 2114, 2130, 2265, 2485, 2520, 2556, 2718, 2840, 2982, 3020, 3171, 3195, 3624, 3780, 3834, 3976, 4077, 4228, 4260, 4473, 4530, 4970, 5112, 5285, 5436, 5964, 6040, 6342, 6390, 6795, 7455, 7560, 7668, 8154, 8456, 8520, 8946, 9060, 9513, 9585, 9940, 10570, 10721, 10872, 11928, 12684, 12780, 13419, 13590, 14910, 15336, 15855, 16308, 17892, 18120, 19026, 19170, 19880, 20385, 21140, 21442, 22365, 25368, 25560, 26838, 27180, 28539, 29820, 31710, 32163, 32616, 35784, 38052, 38340, 40770, 42280, 42884, 44730, 47565, 53605, 53676, 54360, 57078, 59640, 63420, 64326, 67095, 75047, 76104, 76680, 81540, 85768, 89460, 95130, 96489, 107210, 107352, 114156, 126840, 128652, 134190, 142695, 150094, 160815, 163080, 178920, 190260, 192978, 214420, 225141, 228312, 257304, 268380, 285390, 289467, 300188, 321630, 375235, 380520, 385956, 428840, 450282, 482445, 536760, 570780, 578934, 600376, 643260, 675423, 750470, 771912, 900564, 964890, 1125705, 1141560, 1157868, 1286520, 1350846, 1447335, 1500940, 1801128, 1929780, 2026269, 2251410, 2315736, 2701692, 2894670, 3001880, 3377115, 3859560, 4052538, 4502820, 5403384, 5789340, 6754230, 8105076, 9005640, 10131345, 11578680, 13508460, 16210152, 20262690, 27016920, 40525380, 81050760]

約数ペア:

[(1, 81050760), (2, 40525380), (3, 27016920), (4, 20262690), (5, 16210152), (6, 13508460), (7, 11578680), (8, 10131345), (9, 9005640), (10, 8105076), (12, 6754230), (14, 5789340), (15, 5403384), (18, 4502820), (20, 4052538), (21, 3859560), (24, 3377115), (27, 3001880), (28, 2894670), (30, 2701692), (35, 2315736), (36, 2251410), (40, 2026269), (42, 1929780), (45, 1801128), (54, 1500940), (56, 1447335), (60, 1350846), (63, 1286520), (70, 1157868), (71, 1141560), (72, 1125705), (84, 964890), (90, 900564), (105, 771912), (108, 750470), (120, 675423), (126, 643260), (135, 600376), (140, 578934), (142, 570780), (151, 536760), (168, 482445), (180, 450282), (189, 428840), (210, 385956), (213, 380520), (216, 375235), (252, 321630), (270, 300188), (280, 289467), (284, 285390), (302, 268380), (315, 257304), (355, 228312), (360, 225141), (378, 214420), (420, 192978), (426, 190260), (453, 178920), (497, 163080), (504, 160815), (540, 150094), (568, 142695), (604, 134190), (630, 128652), (639, 126840), (710, 114156), (755, 107352), (756, 107210), (840, 96489), (852, 95130), (906, 89460), (945, 85768), (994, 81540), (1057, 76680), (1065, 76104), (1080, 75047), (1208, 67095), (1260, 64326), (1278, 63420), (1359, 59640), (1420, 57078), (1491, 54360), (1510, 53676), (1512, 53605), (1704, 47565), (1812, 44730), (1890, 42884), (1917, 42280), (1988, 40770), (2114, 38340), (2130, 38052), (2265, 35784), (2485, 32616), (2520, 32163), (2556, 31710), (2718, 29820), (2840, 28539), (2982, 27180), (3020, 26838), (3171, 25560), (3195, 25368), (3624, 22365), (3780, 21442), (3834, 21140), (3976, 20385), (4077, 19880), (4228, 19170), (4260, 19026), (4473, 18120), (4530, 17892), (4970, 16308), (5112, 15855), (5285, 15336), (5436, 14910), (5964, 13590), (6040, 13419), (6342, 12780), (6390, 12684), (6795, 11928), (7455, 10872), (7560, 10721), (7668, 10570), (8154, 9940), (8456, 9585), (8520, 9513), (8946, 9060)]