201310720

素因数分解:

$2^9\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{263}}^1$

素因数の和:322

約数の個数: 160

約数和(自身を含む): 544465152

約数和(自身を除く): 343154432

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 23, 26, 32, 40, 46, 52, 64, 65, 80, 92, 104, 115, 128, 130, 160, 184, 208, 230, 256, 260, 263, 299, 320, 368, 416, 460, 512, 520, 526, 598, 640, 736, 832, 920, 1040, 1052, 1196, 1280, 1315, 1472, 1495, 1664, 1840, 2080, 2104, 2392, 2560, 2630, 2944, 2990, 3328, 3419, 3680, 4160, 4208, 4784, 5260, 5888, 5980, 6049, 6656, 6838, 7360, 8320, 8416, 9568, 10520, 11776, 11960, 12098, 13676, 14720, 16640, 16832, 17095, 19136, 21040, 23920, 24196, 27352, 29440, 30245, 33280, 33664, 34190, 38272, 42080, 47840, 48392, 54704, 58880, 60490, 67328, 68380, 76544, 78637, 84160, 95680, 96784, 109408, 120980, 134656, 136760, 153088, 157274, 168320, 191360, 193568, 218816, 241960, 273520, 314548, 336640, 382720, 387136, 393185, 437632, 483920, 547040, 629096, 673280, 765440, 774272, 786370, 875264, 967840, 1094080, 1258192, 1548544, 1572740, 1750528, 1935680, 2188160, 2516384, 3097088, 3145480, 3871360, 4376320, 5032768, 6290960, 7742720, 8752640, 10065536, 12581920, 15485440, 20131072, 25163840, 40262144, 50327680, 100655360, 201310720]

約数ペア:

[(1, 201310720), (2, 100655360), (4, 50327680), (5, 40262144), (8, 25163840), (10, 20131072), (13, 15485440), (16, 12581920), (20, 10065536), (23, 8752640), (26, 7742720), (32, 6290960), (40, 5032768), (46, 4376320), (52, 3871360), (64, 3145480), (65, 3097088), (80, 2516384), (92, 2188160), (104, 1935680), (115, 1750528), (128, 1572740), (130, 1548544), (160, 1258192), (184, 1094080), (208, 967840), (230, 875264), (256, 786370), (260, 774272), (263, 765440), (299, 673280), (320, 629096), (368, 547040), (416, 483920), (460, 437632), (512, 393185), (520, 387136), (526, 382720), (598, 336640), (640, 314548), (736, 273520), (832, 241960), (920, 218816), (1040, 193568), (1052, 191360), (1196, 168320), (1280, 157274), (1315, 153088), (1472, 136760), (1495, 134656), (1664, 120980), (1840, 109408), (2080, 96784), (2104, 95680), (2392, 84160), (2560, 78637), (2630, 76544), (2944, 68380), (2990, 67328), (3328, 60490), (3419, 58880), (3680, 54704), (4160, 48392), (4208, 47840), (4784, 42080), (5260, 38272), (5888, 34190), (5980, 33664), (6049, 33280), (6656, 30245), (6838, 29440), (7360, 27352), (8320, 24196), (8416, 23920), (9568, 21040), (10520, 19136), (11776, 17095), (11960, 16832), (12098, 16640), (13676, 14720)]