20215216

素因数分解:

$2^4\times 7^1\times {\mathrm{199}}^1\times {\mathrm{907}}^1$

素因数の和:1121

約数の個数: 40

約数和(自身を含む): 45036800

約数和(自身を除く): 24821584

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 199, 398, 796, 907, 1393, 1592, 1814, 2786, 3184, 3628, 5572, 6349, 7256, 11144, 12698, 14512, 22288, 25396, 50792, 101584, 180493, 360986, 721972, 1263451, 1443944, 2526902, 2887888, 5053804, 10107608, 20215216]

約数ペア:

[(1, 20215216), (2, 10107608), (4, 5053804), (7, 2887888), (8, 2526902), (14, 1443944), (16, 1263451), (28, 721972), (56, 360986), (112, 180493), (199, 101584), (398, 50792), (796, 25396), (907, 22288), (1393, 14512), (1592, 12698), (1814, 11144), (2786, 7256), (3184, 6349), (3628, 5572)]