13985720

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{199}}^1\times {\mathrm{251}}^1$

素因数の和:468

約数の個数: 64

約数和(自身を含む): 36288000

約数和(自身を除く): 22302280

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 199, 251, 280, 398, 502, 796, 995, 1004, 1255, 1393, 1592, 1757, 1990, 2008, 2510, 2786, 3514, 3980, 5020, 5572, 6965, 7028, 7960, 8785, 10040, 11144, 13930, 14056, 17570, 27860, 35140, 49949, 55720, 70280, 99898, 199796, 249745, 349643, 399592, 499490, 699286, 998980, 1398572, 1748215, 1997960, 2797144, 3496430, 6992860, 13985720]

約数ペア:

[(1, 13985720), (2, 6992860), (4, 3496430), (5, 2797144), (7, 1997960), (8, 1748215), (10, 1398572), (14, 998980), (20, 699286), (28, 499490), (35, 399592), (40, 349643), (56, 249745), (70, 199796), (140, 99898), (199, 70280), (251, 55720), (280, 49949), (398, 35140), (502, 27860), (796, 17570), (995, 14056), (1004, 13930), (1255, 11144), (1393, 10040), (1592, 8785), (1757, 7960), (1990, 7028), (2008, 6965), (2510, 5572), (2786, 5020), (3514, 3980)]