331388720

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^2\times {\mathrm{127}}^1\times {\mathrm{193}}^1$

素因数の和:359

約数の個数: 120

約数和(自身を含む): 845231616

約数和(自身を除く): 513842896

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 127, 130, 169, 193, 208, 254, 260, 338, 386, 508, 520, 635, 676, 772, 845, 965, 1016, 1040, 1270, 1352, 1544, 1651, 1690, 1930, 2032, 2509, 2540, 2704, 3088, 3302, 3380, 3860, 5018, 5080, 6604, 6760, 7720, 8255, 10036, 10160, 12545, 13208, 13520, 15440, 16510, 20072, 21463, 24511, 25090, 26416, 32617, 33020, 40144, 42926, 49022, 50180, 65234, 66040, 85852, 98044, 100360, 107315, 122555, 130468, 132080, 163085, 171704, 196088, 200720, 214630, 245110, 260936, 318643, 326170, 343408, 392176, 429260, 490220, 521872, 637286, 652340, 858520, 980440, 1274572, 1304680, 1593215, 1717040, 1960880, 2549144, 2609360, 3186430, 4142359, 5098288, 6372860, 8284718, 12745720, 16569436, 20711795, 25491440, 33138872, 41423590, 66277744, 82847180, 165694360, 331388720]

約数ペア:

[(1, 331388720), (2, 165694360), (4, 82847180), (5, 66277744), (8, 41423590), (10, 33138872), (13, 25491440), (16, 20711795), (20, 16569436), (26, 12745720), (40, 8284718), (52, 6372860), (65, 5098288), (80, 4142359), (104, 3186430), (127, 2609360), (130, 2549144), (169, 1960880), (193, 1717040), (208, 1593215), (254, 1304680), (260, 1274572), (338, 980440), (386, 858520), (508, 652340), (520, 637286), (635, 521872), (676, 490220), (772, 429260), (845, 392176), (965, 343408), (1016, 326170), (1040, 318643), (1270, 260936), (1352, 245110), (1544, 214630), (1651, 200720), (1690, 196088), (1930, 171704), (2032, 163085), (2509, 132080), (2540, 130468), (2704, 122555), (3088, 107315), (3302, 100360), (3380, 98044), (3860, 85852), (5018, 66040), (5080, 65234), (6604, 50180), (6760, 49022), (7720, 42926), (8255, 40144), (10036, 33020), (10160, 32617), (12545, 26416), (13208, 25090), (13520, 24511), (15440, 21463), (16510, 20072)]