12745720

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{127}}^1\times {\mathrm{193}}^1$

素因数の和:344

約数の個数: 64

約数和(自身を含む): 31288320

約数和(自身を除く): 18542600

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 127, 130, 193, 254, 260, 386, 508, 520, 635, 772, 965, 1016, 1270, 1544, 1651, 1930, 2509, 2540, 3302, 3860, 5018, 5080, 6604, 7720, 8255, 10036, 12545, 13208, 16510, 20072, 24511, 25090, 33020, 49022, 50180, 66040, 98044, 100360, 122555, 196088, 245110, 318643, 490220, 637286, 980440, 1274572, 1593215, 2549144, 3186430, 6372860, 12745720]

約数ペア:

[(1, 12745720), (2, 6372860), (4, 3186430), (5, 2549144), (8, 1593215), (10, 1274572), (13, 980440), (20, 637286), (26, 490220), (40, 318643), (52, 245110), (65, 196088), (104, 122555), (127, 100360), (130, 98044), (193, 66040), (254, 50180), (260, 49022), (386, 33020), (508, 25090), (520, 24511), (635, 20072), (772, 16510), (965, 13208), (1016, 12545), (1270, 10036), (1544, 8255), (1651, 7720), (1930, 6604), (2509, 5080), (2540, 5018), (3302, 3860)]