7745080

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{139}}^1\times {\mathrm{199}}^1$

素因数の和:356

約数の個数: 64

約数和(自身を含む): 20160000

約数和(自身を除く): 12414920

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 139, 140, 199, 278, 280, 398, 556, 695, 796, 973, 995, 1112, 1390, 1393, 1592, 1946, 1990, 2780, 2786, 3892, 3980, 4865, 5560, 5572, 6965, 7784, 7960, 9730, 11144, 13930, 19460, 27661, 27860, 38920, 55322, 55720, 110644, 138305, 193627, 221288, 276610, 387254, 553220, 774508, 968135, 1106440, 1549016, 1936270, 3872540, 7745080]

約数ペア:

[(1, 7745080), (2, 3872540), (4, 1936270), (5, 1549016), (7, 1106440), (8, 968135), (10, 774508), (14, 553220), (20, 387254), (28, 276610), (35, 221288), (40, 193627), (56, 138305), (70, 110644), (139, 55720), (140, 55322), (199, 38920), (278, 27860), (280, 27661), (398, 19460), (556, 13930), (695, 11144), (796, 9730), (973, 7960), (995, 7784), (1112, 6965), (1390, 5572), (1393, 5560), (1592, 4865), (1946, 3980), (1990, 3892), (2780, 2786)]