638807040

素因数分解:

$2^{10}\times 3^3\times 5^1\times {\mathrm{4621}}^1$

素因数の和:4655

約数の個数: 176

約数和(自身を含む): 2270696160

約数和(自身を除く): 1631889120

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 32, 36, 40, 45, 48, 54, 60, 64, 72, 80, 90, 96, 108, 120, 128, 135, 144, 160, 180, 192, 216, 240, 256, 270, 288, 320, 360, 384, 432, 480, 512, 540, 576, 640, 720, 768, 864, 960, 1024, 1080, 1152, 1280, 1440, 1536, 1728, 1920, 2160, 2304, 2560, 2880, 3072, 3456, 3840, 4320, 4608, 4621, 5120, 5760, 6912, 7680, 8640, 9216, 9242, 11520, 13824, 13863, 15360, 17280, 18484, 23040, 23105, 27648, 27726, 34560, 36968, 41589, 46080, 46210, 55452, 69120, 69315, 73936, 83178, 92420, 110904, 124767, 138240, 138630, 147872, 166356, 184840, 207945, 221808, 249534, 277260, 295744, 332712, 369680, 415890, 443616, 499068, 554520, 591488, 623835, 665424, 739360, 831780, 887232, 998136, 1109040, 1182976, 1247670, 1330848, 1478720, 1663560, 1774464, 1996272, 2218080, 2365952, 2495340, 2661696, 2957440, 3327120, 3548928, 3992544, 4436160, 4731904, 4990680, 5323392, 5914880, 6654240, 7097856, 7985088, 8872320, 9981360, 10646784, 11829760, 13308480, 14195712, 15970176, 17744640, 19962720, 21293568, 23659520, 26616960, 31940352, 35489280, 39925440, 42587136, 53233920, 63880704, 70978560, 79850880, 106467840, 127761408, 159701760, 212935680, 319403520, 638807040]

約数ペア:

[(1, 638807040), (2, 319403520), (3, 212935680), (4, 159701760), (5, 127761408), (6, 106467840), (8, 79850880), (9, 70978560), (10, 63880704), (12, 53233920), (15, 42587136), (16, 39925440), (18, 35489280), (20, 31940352), (24, 26616960), (27, 23659520), (30, 21293568), (32, 19962720), (36, 17744640), (40, 15970176), (45, 14195712), (48, 13308480), (54, 11829760), (60, 10646784), (64, 9981360), (72, 8872320), (80, 7985088), (90, 7097856), (96, 6654240), (108, 5914880), (120, 5323392), (128, 4990680), (135, 4731904), (144, 4436160), (160, 3992544), (180, 3548928), (192, 3327120), (216, 2957440), (240, 2661696), (256, 2495340), (270, 2365952), (288, 2218080), (320, 1996272), (360, 1774464), (384, 1663560), (432, 1478720), (480, 1330848), (512, 1247670), (540, 1182976), (576, 1109040), (640, 998136), (720, 887232), (768, 831780), (864, 739360), (960, 665424), (1024, 623835), (1080, 591488), (1152, 554520), (1280, 499068), (1440, 443616), (1536, 415890), (1728, 369680), (1920, 332712), (2160, 295744), (2304, 277260), (2560, 249534), (2880, 221808), (3072, 207945), (3456, 184840), (3840, 166356), (4320, 147872), (4608, 138630), (4621, 138240), (5120, 124767), (5760, 110904), (6912, 92420), (7680, 83178), (8640, 73936), (9216, 69315), (9242, 69120), (11520, 55452), (13824, 46210), (13863, 46080), (15360, 41589), (17280, 36968), (18484, 34560), (23040, 27726), (23105, 27648)]