256068480

素因数分解:

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

素因数の和:896

約数の個数: 128

約数和(自身を含む): 821573280

約数和(自身を除く): 565504800

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 64, 80, 96, 120, 128, 160, 192, 197, 240, 320, 384, 394, 480, 591, 640, 677, 788, 960, 985, 1182, 1354, 1576, 1920, 1970, 2031, 2364, 2708, 2955, 3152, 3385, 3940, 4062, 4728, 5416, 5910, 6304, 6770, 7880, 8124, 9456, 10155, 10832, 11820, 12608, 13540, 15760, 16248, 18912, 20310, 21664, 23640, 25216, 27080, 31520, 32496, 37824, 40620, 43328, 47280, 54160, 63040, 64992, 75648, 81240, 86656, 94560, 108320, 126080, 129984, 133369, 162480, 189120, 216640, 259968, 266738, 324960, 378240, 400107, 433280, 533476, 649920, 666845, 800214, 1066952, 1299840, 1333690, 1600428, 2000535, 2133904, 2667380, 3200856, 4001070, 4267808, 5334760, 6401712, 8002140, 8535616, 10669520, 12803424, 16004280, 17071232, 21339040, 25606848, 32008560, 42678080, 51213696, 64017120, 85356160, 128034240, 256068480]

約数ペア:

[(1, 256068480), (2, 128034240), (3, 85356160), (4, 64017120), (5, 51213696), (6, 42678080), (8, 32008560), (10, 25606848), (12, 21339040), (15, 17071232), (16, 16004280), (20, 12803424), (24, 10669520), (30, 8535616), (32, 8002140), (40, 6401712), (48, 5334760), (60, 4267808), (64, 4001070), (80, 3200856), (96, 2667380), (120, 2133904), (128, 2000535), (160, 1600428), (192, 1333690), (197, 1299840), (240, 1066952), (320, 800214), (384, 666845), (394, 649920), (480, 533476), (591, 433280), (640, 400107), (677, 378240), (788, 324960), (960, 266738), (985, 259968), (1182, 216640), (1354, 189120), (1576, 162480), (1920, 133369), (1970, 129984), (2031, 126080), (2364, 108320), (2708, 94560), (2955, 86656), (3152, 81240), (3385, 75648), (3940, 64992), (4062, 63040), (4728, 54160), (5416, 47280), (5910, 43328), (6304, 40620), (6770, 37824), (7880, 32496), (8124, 31520), (9456, 27080), (10155, 25216), (10832, 23640), (11820, 21664), (12608, 20310), (13540, 18912), (15760, 16248)]