30462920

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{89}}^1\times {\mathrm{199}}^1$

素因数の和:342

約数の個数: 64

約数和(自身を含む): 71280000

約数和(自身を除く): 40817080

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 89, 172, 178, 199, 215, 344, 356, 398, 430, 445, 712, 796, 860, 890, 995, 1592, 1720, 1780, 1990, 3560, 3827, 3980, 7654, 7960, 8557, 15308, 17114, 17711, 19135, 30616, 34228, 35422, 38270, 42785, 68456, 70844, 76540, 85570, 88555, 141688, 153080, 171140, 177110, 342280, 354220, 708440, 761573, 1523146, 3046292, 3807865, 6092584, 7615730, 15231460, 30462920]

約数ペア:

[(1, 30462920), (2, 15231460), (4, 7615730), (5, 6092584), (8, 3807865), (10, 3046292), (20, 1523146), (40, 761573), (43, 708440), (86, 354220), (89, 342280), (172, 177110), (178, 171140), (199, 153080), (215, 141688), (344, 88555), (356, 85570), (398, 76540), (430, 70844), (445, 68456), (712, 42785), (796, 38270), (860, 35422), (890, 34228), (995, 30616), (1592, 19135), (1720, 17711), (1780, 17114), (1990, 15308), (3560, 8557), (3827, 7960), (3980, 7654)]