126858520

素因数分解:

$2^3\times 5^1\times {\mathrm{199}}^1\times {\mathrm{15937}}^1$

素因数の和:16147

約数の個数: 32

約数和(自身を含む): 286884000

約数和(自身を除く): 160025480

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 199, 398, 796, 995, 1592, 1990, 3980, 7960, 15937, 31874, 63748, 79685, 127496, 159370, 318740, 637480, 3171463, 6342926, 12685852, 15857315, 25371704, 31714630, 63429260, 126858520]

約数ペア:

[(1, 126858520), (2, 63429260), (4, 31714630), (5, 25371704), (8, 15857315), (10, 12685852), (20, 6342926), (40, 3171463), (199, 637480), (398, 318740), (796, 159370), (995, 127496), (1592, 79685), (1990, 63748), (3980, 31874), (7960, 15937)]