1280736000

素因数分解:

$2^8\times 3^2\times 5^3\times {\mathrm{4447}}^1$

素因数の和:4484

約数の個数: 216

約数和(自身を含む): 4609497984

約数和(自身を除く): 3328761984

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 25, 30, 32, 36, 40, 45, 48, 50, 60, 64, 72, 75, 80, 90, 96, 100, 120, 125, 128, 144, 150, 160, 180, 192, 200, 225, 240, 250, 256, 288, 300, 320, 360, 375, 384, 400, 450, 480, 500, 576, 600, 640, 720, 750, 768, 800, 900, 960, 1000, 1125, 1152, 1200, 1280, 1440, 1500, 1600, 1800, 1920, 2000, 2250, 2304, 2400, 2880, 3000, 3200, 3600, 3840, 4000, 4447, 4500, 4800, 5760, 6000, 6400, 7200, 8000, 8894, 9000, 9600, 11520, 12000, 13341, 14400, 16000, 17788, 18000, 19200, 22235, 24000, 26682, 28800, 32000, 35576, 36000, 40023, 44470, 48000, 53364, 57600, 66705, 71152, 72000, 80046, 88940, 96000, 106728, 111175, 133410, 142304, 144000, 160092, 177880, 200115, 213456, 222350, 266820, 284608, 288000, 320184, 333525, 355760, 400230, 426912, 444700, 533640, 555875, 569216, 640368, 667050, 711520, 800460, 853824, 889400, 1000575, 1067280, 1111750, 1138432, 1280736, 1334100, 1423040, 1600920, 1667625, 1707648, 1778800, 2001150, 2134560, 2223500, 2561472, 2668200, 2846080, 3201840, 3335250, 3415296, 3557600, 4002300, 4269120, 4447000, 5002875, 5122944, 5336400, 5692160, 6403680, 6670500, 7115200, 8004600, 8538240, 8894000, 10005750, 10245888, 10672800, 12807360, 13341000, 14230400, 16009200, 17076480, 17788000, 20011500, 21345600, 25614720, 26682000, 28460800, 32018400, 35576000, 40023000, 42691200, 51229440, 53364000, 64036800, 71152000, 80046000, 85382400, 106728000, 128073600, 142304000, 160092000, 213456000, 256147200, 320184000, 426912000, 640368000, 1280736000]

約数ペア:

[(1, 1280736000), (2, 640368000), (3, 426912000), (4, 320184000), (5, 256147200), (6, 213456000), (8, 160092000), (9, 142304000), (10, 128073600), (12, 106728000), (15, 85382400), (16, 80046000), (18, 71152000), (20, 64036800), (24, 53364000), (25, 51229440), (30, 42691200), (32, 40023000), (36, 35576000), (40, 32018400), (45, 28460800), (48, 26682000), (50, 25614720), (60, 21345600), (64, 20011500), (72, 17788000), (75, 17076480), (80, 16009200), (90, 14230400), (96, 13341000), (100, 12807360), (120, 10672800), (125, 10245888), (128, 10005750), (144, 8894000), (150, 8538240), (160, 8004600), (180, 7115200), (192, 6670500), (200, 6403680), (225, 5692160), (240, 5336400), (250, 5122944), (256, 5002875), (288, 4447000), (300, 4269120), (320, 4002300), (360, 3557600), (375, 3415296), (384, 3335250), (400, 3201840), (450, 2846080), (480, 2668200), (500, 2561472), (576, 2223500), (600, 2134560), (640, 2001150), (720, 1778800), (750, 1707648), (768, 1667625), (800, 1600920), (900, 1423040), (960, 1334100), (1000, 1280736), (1125, 1138432), (1152, 1111750), (1200, 1067280), (1280, 1000575), (1440, 889400), (1500, 853824), (1600, 800460), (1800, 711520), (1920, 667050), (2000, 640368), (2250, 569216), (2304, 555875), (2400, 533640), (2880, 444700), (3000, 426912), (3200, 400230), (3600, 355760), (3840, 333525), (4000, 320184), (4447, 288000), (4500, 284608), (4800, 266820), (5760, 222350), (6000, 213456), (6400, 200115), (7200, 177880), (8000, 160092), (8894, 144000), (9000, 142304), (9600, 133410), (11520, 111175), (12000, 106728), (13341, 96000), (14400, 88940), (16000, 80046), (17788, 72000), (18000, 71152), (19200, 66705), (22235, 57600), (24000, 53364), (26682, 48000), (28800, 44470), (32000, 40023), (35576, 36000)]