487406720

素因数分解:

$2^7\times 5^1\times {\mathrm{43}}^1\times {\mathrm{89}}^1\times {\mathrm{199}}^1$

素因数の和:350

約数の個数: 128

約数和(自身を含む): 1211760000

約数和(自身を除く): 724353280

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 43, 64, 80, 86, 89, 128, 160, 172, 178, 199, 215, 320, 344, 356, 398, 430, 445, 640, 688, 712, 796, 860, 890, 995, 1376, 1424, 1592, 1720, 1780, 1990, 2752, 2848, 3184, 3440, 3560, 3827, 3980, 5504, 5696, 6368, 6880, 7120, 7654, 7960, 8557, 11392, 12736, 13760, 14240, 15308, 15920, 17114, 17711, 19135, 25472, 27520, 28480, 30616, 31840, 34228, 35422, 38270, 42785, 56960, 61232, 63680, 68456, 70844, 76540, 85570, 88555, 122464, 127360, 136912, 141688, 153080, 171140, 177110, 244928, 273824, 283376, 306160, 342280, 354220, 489856, 547648, 566752, 612320, 684560, 708440, 761573, 1095296, 1133504, 1224640, 1369120, 1416880, 1523146, 2267008, 2449280, 2738240, 2833760, 3046292, 3807865, 5476480, 5667520, 6092584, 7615730, 11335040, 12185168, 15231460, 24370336, 30462920, 48740672, 60925840, 97481344, 121851680, 243703360, 487406720]

約数ペア:

[(1, 487406720), (2, 243703360), (4, 121851680), (5, 97481344), (8, 60925840), (10, 48740672), (16, 30462920), (20, 24370336), (32, 15231460), (40, 12185168), (43, 11335040), (64, 7615730), (80, 6092584), (86, 5667520), (89, 5476480), (128, 3807865), (160, 3046292), (172, 2833760), (178, 2738240), (199, 2449280), (215, 2267008), (320, 1523146), (344, 1416880), (356, 1369120), (398, 1224640), (430, 1133504), (445, 1095296), (640, 761573), (688, 708440), (712, 684560), (796, 612320), (860, 566752), (890, 547648), (995, 489856), (1376, 354220), (1424, 342280), (1592, 306160), (1720, 283376), (1780, 273824), (1990, 244928), (2752, 177110), (2848, 171140), (3184, 153080), (3440, 141688), (3560, 136912), (3827, 127360), (3980, 122464), (5504, 88555), (5696, 85570), (6368, 76540), (6880, 70844), (7120, 68456), (7654, 63680), (7960, 61232), (8557, 56960), (11392, 42785), (12736, 38270), (13760, 35422), (14240, 34228), (15308, 31840), (15920, 30616), (17114, 28480), (17711, 27520), (19135, 25472)]