1279646480

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{151}}^1\times {\mathrm{409}}^1$

素因数の和:617

約数の個数: 160

約数和(自身を含む): 3523822080

約数和(自身を除く): 2244175600

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 37, 40, 56, 70, 74, 80, 112, 140, 148, 151, 185, 259, 280, 296, 302, 370, 409, 518, 560, 592, 604, 740, 755, 818, 1036, 1057, 1208, 1295, 1480, 1510, 1636, 2045, 2072, 2114, 2416, 2590, 2863, 2960, 3020, 3272, 4090, 4144, 4228, 5180, 5285, 5587, 5726, 6040, 6544, 8180, 8456, 10360, 10570, 11174, 11452, 12080, 14315, 15133, 16360, 16912, 20720, 21140, 22348, 22904, 27935, 28630, 30266, 32720, 39109, 42280, 44696, 45808, 55870, 57260, 60532, 61759, 75665, 78218, 84560, 89392, 105931, 111740, 114520, 121064, 123518, 151330, 156436, 195545, 211862, 223480, 229040, 242128, 247036, 302660, 308795, 312872, 391090, 423724, 432313, 446960, 494072, 529655, 605320, 617590, 625744, 782180, 847448, 864626, 988144, 1059310, 1210640, 1235180, 1564360, 1694896, 1729252, 2118620, 2161565, 2285083, 2470360, 3128720, 3458504, 4237240, 4323130, 4570166, 4940720, 6917008, 8474480, 8646260, 9140332, 11425415, 15995581, 17292520, 18280664, 22850830, 31991162, 34585040, 36561328, 45701660, 63982324, 79977905, 91403320, 127964648, 159955810, 182806640, 255929296, 319911620, 639823240, 1279646480]

約数ペア:

[(1, 1279646480), (2, 639823240), (4, 319911620), (5, 255929296), (7, 182806640), (8, 159955810), (10, 127964648), (14, 91403320), (16, 79977905), (20, 63982324), (28, 45701660), (35, 36561328), (37, 34585040), (40, 31991162), (56, 22850830), (70, 18280664), (74, 17292520), (80, 15995581), (112, 11425415), (140, 9140332), (148, 8646260), (151, 8474480), (185, 6917008), (259, 4940720), (280, 4570166), (296, 4323130), (302, 4237240), (370, 3458504), (409, 3128720), (518, 2470360), (560, 2285083), (592, 2161565), (604, 2118620), (740, 1729252), (755, 1694896), (818, 1564360), (1036, 1235180), (1057, 1210640), (1208, 1059310), (1295, 988144), (1480, 864626), (1510, 847448), (1636, 782180), (2045, 625744), (2072, 617590), (2114, 605320), (2416, 529655), (2590, 494072), (2863, 446960), (2960, 432313), (3020, 423724), (3272, 391090), (4090, 312872), (4144, 308795), (4228, 302660), (5180, 247036), (5285, 242128), (5587, 229040), (5726, 223480), (6040, 211862), (6544, 195545), (8180, 156436), (8456, 151330), (10360, 123518), (10570, 121064), (11174, 114520), (11452, 111740), (12080, 105931), (14315, 89392), (15133, 84560), (16360, 78218), (16912, 75665), (20720, 61759), (21140, 60532), (22348, 57260), (22904, 55870), (27935, 45808), (28630, 44696), (30266, 42280), (32720, 39109)]