7219720

素因数分解:

$2^3\times 5^1\times {\mathrm{199}}^1\times {\mathrm{907}}^1$

素因数の和:1117

約数の個数: 32

約数和(自身を含む): 16344000

約数和(自身を除く): 9124280

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 199, 398, 796, 907, 995, 1592, 1814, 1990, 3628, 3980, 4535, 7256, 7960, 9070, 18140, 36280, 180493, 360986, 721972, 902465, 1443944, 1804930, 3609860, 7219720]

約数ペア:

[(1, 7219720), (2, 3609860), (4, 1804930), (5, 1443944), (8, 902465), (10, 721972), (20, 360986), (40, 180493), (199, 36280), (398, 18140), (796, 9070), (907, 7960), (995, 7256), (1592, 4535), (1814, 3980), (1990, 3628)]