8664460

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{199}}^1\times {\mathrm{311}}^1$

素因数の和:526

約数の個数: 48

約数和(自身を含む): 20966400

約数和(自身を除く): 12301940

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 199, 311, 398, 622, 796, 995, 1244, 1393, 1555, 1990, 2177, 2786, 3110, 3980, 4354, 5572, 6220, 6965, 8708, 10885, 13930, 21770, 27860, 43540, 61889, 123778, 247556, 309445, 433223, 618890, 866446, 1237780, 1732892, 2166115, 4332230, 8664460]

約数ペア:

[(1, 8664460), (2, 4332230), (4, 2166115), (5, 1732892), (7, 1237780), (10, 866446), (14, 618890), (20, 433223), (28, 309445), (35, 247556), (70, 123778), (140, 61889), (199, 43540), (311, 27860), (398, 21770), (622, 13930), (796, 10885), (995, 8708), (1244, 6965), (1393, 6220), (1555, 5572), (1990, 4354), (2177, 3980), (2786, 3110)]