1197980

素因数分解:

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

素因数の和:258

約数の個数: 48

約数和(自身を含む): 2956800

約数和(自身を除く): 1758820

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 43, 70, 86, 140, 172, 199, 215, 301, 398, 430, 602, 796, 860, 995, 1204, 1393, 1505, 1990, 2786, 3010, 3980, 5572, 6020, 6965, 8557, 13930, 17114, 27860, 34228, 42785, 59899, 85570, 119798, 171140, 239596, 299495, 598990, 1197980]

約数ペア:

[(1, 1197980), (2, 598990), (4, 299495), (5, 239596), (7, 171140), (10, 119798), (14, 85570), (20, 59899), (28, 42785), (35, 34228), (43, 27860), (70, 17114), (86, 13930), (140, 8557), (172, 6965), (199, 6020), (215, 5572), (301, 3980), (398, 3010), (430, 2786), (602, 1990), (796, 1505), (860, 1393), (995, 1204)]