4959080

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{89}}^1\times {\mathrm{199}}^1$

素因数の和:306

約数の個数: 64

約数和(自身を含む): 12960000

約数和(自身を除く): 8000920

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 89, 140, 178, 199, 280, 356, 398, 445, 623, 712, 796, 890, 995, 1246, 1393, 1592, 1780, 1990, 2492, 2786, 3115, 3560, 3980, 4984, 5572, 6230, 6965, 7960, 11144, 12460, 13930, 17711, 24920, 27860, 35422, 55720, 70844, 88555, 123977, 141688, 177110, 247954, 354220, 495908, 619885, 708440, 991816, 1239770, 2479540, 4959080]

約数ペア:

[(1, 4959080), (2, 2479540), (4, 1239770), (5, 991816), (7, 708440), (8, 619885), (10, 495908), (14, 354220), (20, 247954), (28, 177110), (35, 141688), (40, 123977), (56, 88555), (70, 70844), (89, 55720), (140, 35422), (178, 27860), (199, 24920), (280, 17711), (356, 13930), (398, 12460), (445, 11144), (623, 7960), (712, 6965), (796, 6230), (890, 5572), (995, 4984), (1246, 3980), (1393, 3560), (1592, 3115), (1780, 2786), (1990, 2492)]