7872440

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{199}}^1$

素因数の和:276

約数の個数: 64

約数和(自身を含む): 19008000

約数和(自身を除く): 11135560

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 43, 46, 86, 92, 115, 172, 184, 199, 215, 230, 344, 398, 430, 460, 796, 860, 920, 989, 995, 1592, 1720, 1978, 1990, 3956, 3980, 4577, 4945, 7912, 7960, 8557, 9154, 9890, 17114, 18308, 19780, 22885, 34228, 36616, 39560, 42785, 45770, 68456, 85570, 91540, 171140, 183080, 196811, 342280, 393622, 787244, 984055, 1574488, 1968110, 3936220, 7872440]

約数ペア:

[(1, 7872440), (2, 3936220), (4, 1968110), (5, 1574488), (8, 984055), (10, 787244), (20, 393622), (23, 342280), (40, 196811), (43, 183080), (46, 171140), (86, 91540), (92, 85570), (115, 68456), (172, 45770), (184, 42785), (199, 39560), (215, 36616), (230, 34228), (344, 22885), (398, 19780), (430, 18308), (460, 17114), (796, 9890), (860, 9154), (920, 8557), (989, 7960), (995, 7912), (1592, 4945), (1720, 4577), (1978, 3980), (1990, 3956)]