81536000

素因数分解:

$2^{10}\times 5^3\times 7^2\times {\mathrm{13}}^1$

素因数の和:62

約数の個数: 264

約数和(自身を含む): 254826936

約数和(自身を除く): 173290936

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 25, 26, 28, 32, 35, 40, 49, 50, 52, 56, 64, 65, 70, 80, 91, 98, 100, 104, 112, 125, 128, 130, 140, 160, 175, 182, 196, 200, 208, 224, 245, 250, 256, 260, 280, 320, 325, 350, 364, 392, 400, 416, 448, 455, 490, 500, 512, 520, 560, 637, 640, 650, 700, 728, 784, 800, 832, 875, 896, 910, 980, 1000, 1024, 1040, 1120, 1225, 1274, 1280, 1300, 1400, 1456, 1568, 1600, 1625, 1664, 1750, 1792, 1820, 1960, 2000, 2080, 2240, 2275, 2450, 2548, 2560, 2600, 2800, 2912, 3136, 3185, 3200, 3250, 3328, 3500, 3584, 3640, 3920, 4000, 4160, 4480, 4550, 4900, 5096, 5120, 5200, 5600, 5824, 6125, 6272, 6370, 6400, 6500, 6656, 7000, 7168, 7280, 7840, 8000, 8320, 8960, 9100, 9800, 10192, 10400, 11200, 11375, 11648, 12250, 12544, 12740, 12800, 13000, 13312, 14000, 14560, 15680, 15925, 16000, 16640, 17920, 18200, 19600, 20384, 20800, 22400, 22750, 23296, 24500, 25088, 25480, 25600, 26000, 28000, 29120, 31360, 31850, 32000, 33280, 35840, 36400, 39200, 40768, 41600, 44800, 45500, 46592, 49000, 50176, 50960, 52000, 56000, 58240, 62720, 63700, 64000, 66560, 72800, 78400, 79625, 81536, 83200, 89600, 91000, 93184, 98000, 101920, 104000, 112000, 116480, 125440, 127400, 128000, 145600, 156800, 159250, 163072, 166400, 179200, 182000, 196000, 203840, 208000, 224000, 232960, 250880, 254800, 291200, 313600, 318500, 326144, 332800, 364000, 392000, 407680, 416000, 448000, 465920, 509600, 582400, 627200, 637000, 652288, 728000, 784000, 815360, 832000, 896000, 1019200, 1164800, 1254400, 1274000, 1456000, 1568000, 1630720, 1664000, 2038400, 2329600, 2548000, 2912000, 3136000, 3261440, 4076800, 5096000, 5824000, 6272000, 8153600, 10192000, 11648000, 16307200, 20384000, 40768000, 81536000]

約数ペア:

[(1, 81536000), (2, 40768000), (4, 20384000), (5, 16307200), (7, 11648000), (8, 10192000), (10, 8153600), (13, 6272000), (14, 5824000), (16, 5096000), (20, 4076800), (25, 3261440), (26, 3136000), (28, 2912000), (32, 2548000), (35, 2329600), (40, 2038400), (49, 1664000), (50, 1630720), (52, 1568000), (56, 1456000), (64, 1274000), (65, 1254400), (70, 1164800), (80, 1019200), (91, 896000), (98, 832000), (100, 815360), (104, 784000), (112, 728000), (125, 652288), (128, 637000), (130, 627200), (140, 582400), (160, 509600), (175, 465920), (182, 448000), (196, 416000), (200, 407680), (208, 392000), (224, 364000), (245, 332800), (250, 326144), (256, 318500), (260, 313600), (280, 291200), (320, 254800), (325, 250880), (350, 232960), (364, 224000), (392, 208000), (400, 203840), (416, 196000), (448, 182000), (455, 179200), (490, 166400), (500, 163072), (512, 159250), (520, 156800), (560, 145600), (637, 128000), (640, 127400), (650, 125440), (700, 116480), (728, 112000), (784, 104000), (800, 101920), (832, 98000), (875, 93184), (896, 91000), (910, 89600), (980, 83200), (1000, 81536), (1024, 79625), (1040, 78400), (1120, 72800), (1225, 66560), (1274, 64000), (1280, 63700), (1300, 62720), (1400, 58240), (1456, 56000), (1568, 52000), (1600, 50960), (1625, 50176), (1664, 49000), (1750, 46592), (1792, 45500), (1820, 44800), (1960, 41600), (2000, 40768), (2080, 39200), (2240, 36400), (2275, 35840), (2450, 33280), (2548, 32000), (2560, 31850), (2600, 31360), (2800, 29120), (2912, 28000), (3136, 26000), (3185, 25600), (3200, 25480), (3250, 25088), (3328, 24500), (3500, 23296), (3584, 22750), (3640, 22400), (3920, 20800), (4000, 20384), (4160, 19600), (4480, 18200), (4550, 17920), (4900, 16640), (5096, 16000), (5120, 15925), (5200, 15680), (5600, 14560), (5824, 14000), (6125, 13312), (6272, 13000), (6370, 12800), (6400, 12740), (6500, 12544), (6656, 12250), (7000, 11648), (7168, 11375), (7280, 11200), (7840, 10400), (8000, 10192), (8320, 9800), (8960, 9100)]