2479540

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{89}}^1\times {\mathrm{199}}^1$

素因数の和:304

約数の個数: 48

約数和(自身を含む): 6048000

約数和(自身を除く): 3568460

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 89, 140, 178, 199, 356, 398, 445, 623, 796, 890, 995, 1246, 1393, 1780, 1990, 2492, 2786, 3115, 3980, 5572, 6230, 6965, 12460, 13930, 17711, 27860, 35422, 70844, 88555, 123977, 177110, 247954, 354220, 495908, 619885, 1239770, 2479540]

約数ペア:

[(1, 2479540), (2, 1239770), (4, 619885), (5, 495908), (7, 354220), (10, 247954), (14, 177110), (20, 123977), (28, 88555), (35, 70844), (70, 35422), (89, 27860), (140, 17711), (178, 13930), (199, 12460), (356, 6965), (398, 6230), (445, 5572), (623, 3980), (796, 3115), (890, 2786), (995, 2492), (1246, 1990), (1393, 1780)]