261792720

素因数分解:

$2^4\times 3^2\times 5^1\times 7^1\times {\mathrm{127}}^1\times {\mathrm{409}}^1$

素因数の和:562

約数の個数: 240

約数和(自身を含む): 1015173120

約数和(自身を除く): 753380400

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 28, 30, 35, 36, 40, 42, 45, 48, 56, 60, 63, 70, 72, 80, 84, 90, 105, 112, 120, 126, 127, 140, 144, 168, 180, 210, 240, 252, 254, 280, 315, 336, 360, 381, 409, 420, 504, 508, 560, 630, 635, 720, 762, 818, 840, 889, 1008, 1016, 1143, 1227, 1260, 1270, 1524, 1636, 1680, 1778, 1905, 2032, 2045, 2286, 2454, 2520, 2540, 2667, 2863, 3048, 3272, 3556, 3681, 3810, 4090, 4445, 4572, 4908, 5040, 5080, 5334, 5715, 5726, 6096, 6135, 6544, 7112, 7362, 7620, 8001, 8180, 8589, 8890, 9144, 9816, 10160, 10668, 11430, 11452, 12270, 13335, 14224, 14315, 14724, 15240, 16002, 16360, 17178, 17780, 18288, 18405, 19632, 21336, 22860, 22904, 24540, 25767, 26670, 28630, 29448, 30480, 32004, 32720, 34356, 35560, 36810, 40005, 42672, 42945, 45720, 45808, 49080, 51534, 51943, 53340, 57260, 58896, 64008, 68712, 71120, 73620, 80010, 85890, 91440, 98160, 103068, 103886, 106680, 114520, 128016, 128835, 137424, 147240, 155829, 160020, 171780, 206136, 207772, 213360, 229040, 257670, 259715, 294480, 311658, 320040, 343560, 363601, 412272, 415544, 467487, 515340, 519430, 623316, 640080, 687120, 727202, 779145, 831088, 934974, 1030680, 1038860, 1090803, 1246632, 1454404, 1558290, 1818005, 1869948, 2061360, 2077720, 2181606, 2337435, 2493264, 2908808, 3116580, 3272409, 3636010, 3739896, 4155440, 4363212, 4674870, 5454015, 5817616, 6233160, 6544818, 7272020, 7479792, 8726424, 9349740, 10908030, 12466320, 13089636, 14544040, 16362045, 17452848, 18699480, 21816060, 26179272, 29088080, 32724090, 37398960, 43632120, 52358544, 65448180, 87264240, 130896360, 261792720]

約数ペア:

[(1, 261792720), (2, 130896360), (3, 87264240), (4, 65448180), (5, 52358544), (6, 43632120), (7, 37398960), (8, 32724090), (9, 29088080), (10, 26179272), (12, 21816060), (14, 18699480), (15, 17452848), (16, 16362045), (18, 14544040), (20, 13089636), (21, 12466320), (24, 10908030), (28, 9349740), (30, 8726424), (35, 7479792), (36, 7272020), (40, 6544818), (42, 6233160), (45, 5817616), (48, 5454015), (56, 4674870), (60, 4363212), (63, 4155440), (70, 3739896), (72, 3636010), (80, 3272409), (84, 3116580), (90, 2908808), (105, 2493264), (112, 2337435), (120, 2181606), (126, 2077720), (127, 2061360), (140, 1869948), (144, 1818005), (168, 1558290), (180, 1454404), (210, 1246632), (240, 1090803), (252, 1038860), (254, 1030680), (280, 934974), (315, 831088), (336, 779145), (360, 727202), (381, 687120), (409, 640080), (420, 623316), (504, 519430), (508, 515340), (560, 467487), (630, 415544), (635, 412272), (720, 363601), (762, 343560), (818, 320040), (840, 311658), (889, 294480), (1008, 259715), (1016, 257670), (1143, 229040), (1227, 213360), (1260, 207772), (1270, 206136), (1524, 171780), (1636, 160020), (1680, 155829), (1778, 147240), (1905, 137424), (2032, 128835), (2045, 128016), (2286, 114520), (2454, 106680), (2520, 103886), (2540, 103068), (2667, 98160), (2863, 91440), (3048, 85890), (3272, 80010), (3556, 73620), (3681, 71120), (3810, 68712), (4090, 64008), (4445, 58896), (4572, 57260), (4908, 53340), (5040, 51943), (5080, 51534), (5334, 49080), (5715, 45808), (5726, 45720), (6096, 42945), (6135, 42672), (6544, 40005), (7112, 36810), (7362, 35560), (7620, 34356), (8001, 32720), (8180, 32004), (8589, 30480), (8890, 29448), (9144, 28630), (9816, 26670), (10160, 25767), (10668, 24540), (11430, 22904), (11452, 22860), (12270, 21336), (13335, 19632), (14224, 18405), (14315, 18288), (14724, 17780), (15240, 17178), (16002, 16360)]