66337960

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{193}}^1\times {\mathrm{661}}^1$

素因数の和:878

約数の個数: 64

約数和(自身を含む): 161819280

約数和(自身を除く): 95481320

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 193, 260, 386, 520, 661, 772, 965, 1322, 1544, 1930, 2509, 2644, 3305, 3860, 5018, 5288, 6610, 7720, 8593, 10036, 12545, 13220, 17186, 20072, 25090, 26440, 34372, 42965, 50180, 68744, 85930, 100360, 127573, 171860, 255146, 343720, 510292, 637865, 1020584, 1275730, 1658449, 2551460, 3316898, 5102920, 6633796, 8292245, 13267592, 16584490, 33168980, 66337960]

約数ペア:

[(1, 66337960), (2, 33168980), (4, 16584490), (5, 13267592), (8, 8292245), (10, 6633796), (13, 5102920), (20, 3316898), (26, 2551460), (40, 1658449), (52, 1275730), (65, 1020584), (104, 637865), (130, 510292), (193, 343720), (260, 255146), (386, 171860), (520, 127573), (661, 100360), (772, 85930), (965, 68744), (1322, 50180), (1544, 42965), (1930, 34372), (2509, 26440), (2644, 25090), (3305, 20072), (3860, 17186), (5018, 13220), (5288, 12545), (6610, 10036), (7720, 8593)]