39943280

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{193}}^1\times {\mathrm{199}}^1$

素因数の和:418

約数の個数: 80

約数和(自身を含む): 101035200

約数和(自身を除く): 61091920

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 193, 199, 208, 260, 386, 398, 520, 772, 796, 965, 995, 1040, 1544, 1592, 1930, 1990, 2509, 2587, 3088, 3184, 3860, 3980, 5018, 5174, 7720, 7960, 10036, 10348, 12545, 12935, 15440, 15920, 20072, 20696, 25090, 25870, 38407, 40144, 41392, 50180, 51740, 76814, 100360, 103480, 153628, 192035, 200720, 206960, 307256, 384070, 499291, 614512, 768140, 998582, 1536280, 1997164, 2496455, 3072560, 3994328, 4992910, 7988656, 9985820, 19971640, 39943280]

約数ペア:

[(1, 39943280), (2, 19971640), (4, 9985820), (5, 7988656), (8, 4992910), (10, 3994328), (13, 3072560), (16, 2496455), (20, 1997164), (26, 1536280), (40, 998582), (52, 768140), (65, 614512), (80, 499291), (104, 384070), (130, 307256), (193, 206960), (199, 200720), (208, 192035), (260, 153628), (386, 103480), (398, 100360), (520, 76814), (772, 51740), (796, 50180), (965, 41392), (995, 40144), (1040, 38407), (1544, 25870), (1592, 25090), (1930, 20696), (1990, 20072), (2509, 15920), (2587, 15440), (3088, 12935), (3184, 12545), (3860, 10348), (3980, 10036), (5018, 7960), (5174, 7720)]