1280342400

素因数分解:

$2^7\times 3^1\times 5^2\times {\mathrm{197}}^1\times {\mathrm{677}}^1$

素因数の和:901

約数の個数: 192

約数和(自身を含む): 4244795280

約数和(自身を除く): 2964452880

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 25, 30, 32, 40, 48, 50, 60, 64, 75, 80, 96, 100, 120, 128, 150, 160, 192, 197, 200, 240, 300, 320, 384, 394, 400, 480, 591, 600, 640, 677, 788, 800, 960, 985, 1182, 1200, 1354, 1576, 1600, 1920, 1970, 2031, 2364, 2400, 2708, 2955, 3152, 3200, 3385, 3940, 4062, 4728, 4800, 4925, 5416, 5910, 6304, 6770, 7880, 8124, 9456, 9600, 9850, 10155, 10832, 11820, 12608, 13540, 14775, 15760, 16248, 16925, 18912, 19700, 20310, 21664, 23640, 25216, 27080, 29550, 31520, 32496, 33850, 37824, 39400, 40620, 43328, 47280, 50775, 54160, 59100, 63040, 64992, 67700, 75648, 78800, 81240, 86656, 94560, 101550, 108320, 118200, 126080, 129984, 133369, 135400, 157600, 162480, 189120, 203100, 216640, 236400, 259968, 266738, 270800, 315200, 324960, 378240, 400107, 406200, 433280, 472800, 533476, 541600, 630400, 649920, 666845, 800214, 812400, 945600, 1066952, 1083200, 1299840, 1333690, 1600428, 1624800, 1891200, 2000535, 2133904, 2166400, 2667380, 3200856, 3249600, 3334225, 4001070, 4267808, 5334760, 6401712, 6499200, 6668450, 8002140, 8535616, 10002675, 10669520, 12803424, 13336900, 16004280, 17071232, 20005350, 21339040, 25606848, 26673800, 32008560, 40010700, 42678080, 51213696, 53347600, 64017120, 80021400, 85356160, 106695200, 128034240, 160042800, 213390400, 256068480, 320085600, 426780800, 640171200, 1280342400]

約数ペア:

[(1, 1280342400), (2, 640171200), (3, 426780800), (4, 320085600), (5, 256068480), (6, 213390400), (8, 160042800), (10, 128034240), (12, 106695200), (15, 85356160), (16, 80021400), (20, 64017120), (24, 53347600), (25, 51213696), (30, 42678080), (32, 40010700), (40, 32008560), (48, 26673800), (50, 25606848), (60, 21339040), (64, 20005350), (75, 17071232), (80, 16004280), (96, 13336900), (100, 12803424), (120, 10669520), (128, 10002675), (150, 8535616), (160, 8002140), (192, 6668450), (197, 6499200), (200, 6401712), (240, 5334760), (300, 4267808), (320, 4001070), (384, 3334225), (394, 3249600), (400, 3200856), (480, 2667380), (591, 2166400), (600, 2133904), (640, 2000535), (677, 1891200), (788, 1624800), (800, 1600428), (960, 1333690), (985, 1299840), (1182, 1083200), (1200, 1066952), (1354, 945600), (1576, 812400), (1600, 800214), (1920, 666845), (1970, 649920), (2031, 630400), (2364, 541600), (2400, 533476), (2708, 472800), (2955, 433280), (3152, 406200), (3200, 400107), (3385, 378240), (3940, 324960), (4062, 315200), (4728, 270800), (4800, 266738), (4925, 259968), (5416, 236400), (5910, 216640), (6304, 203100), (6770, 189120), (7880, 162480), (8124, 157600), (9456, 135400), (9600, 133369), (9850, 129984), (10155, 126080), (10832, 118200), (11820, 108320), (12608, 101550), (13540, 94560), (14775, 86656), (15760, 81240), (16248, 78800), (16925, 75648), (18912, 67700), (19700, 64992), (20310, 63040), (21664, 59100), (23640, 54160), (25216, 50775), (27080, 47280), (29550, 43328), (31520, 40620), (32496, 39400), (33850, 37824)]