3872540

素因数分解:

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

素因数の和:354

約数の個数: 48

約数和(自身を含む): 9408000

約数和(自身を除く): 5535460

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 139, 140, 199, 278, 398, 556, 695, 796, 973, 995, 1390, 1393, 1946, 1990, 2780, 2786, 3892, 3980, 4865, 5572, 6965, 9730, 13930, 19460, 27661, 27860, 55322, 110644, 138305, 193627, 276610, 387254, 553220, 774508, 968135, 1936270, 3872540]

約数ペア:

[(1, 3872540), (2, 1936270), (4, 968135), (5, 774508), (7, 553220), (10, 387254), (14, 276610), (20, 193627), (28, 138305), (35, 110644), (70, 55322), (139, 27860), (140, 27661), (199, 19460), (278, 13930), (398, 9730), (556, 6965), (695, 5572), (796, 4865), (973, 3980), (995, 3892), (1390, 2786), (1393, 2780), (1946, 1990)]