320420800

素因数分解:

$2^6\times 5^2\times 7^2\times {\mathrm{61}}^1\times {\mathrm{67}}^1$

素因数の和:164

約数の個数: 252

約数和(自身を含む): 946108344

約数和(自身を除く): 625687544

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 25, 28, 32, 35, 40, 49, 50, 56, 61, 64, 67, 70, 80, 98, 100, 112, 122, 134, 140, 160, 175, 196, 200, 224, 244, 245, 268, 280, 305, 320, 335, 350, 392, 400, 427, 448, 469, 488, 490, 536, 560, 610, 670, 700, 784, 800, 854, 938, 976, 980, 1072, 1120, 1220, 1225, 1340, 1400, 1525, 1568, 1600, 1675, 1708, 1876, 1952, 1960, 2135, 2144, 2240, 2345, 2440, 2450, 2680, 2800, 2989, 3050, 3136, 3283, 3350, 3416, 3752, 3904, 3920, 4087, 4270, 4288, 4690, 4880, 4900, 5360, 5600, 5978, 6100, 6566, 6700, 6832, 7504, 7840, 8174, 8540, 9380, 9760, 9800, 10675, 10720, 11200, 11725, 11956, 12200, 13132, 13400, 13664, 14945, 15008, 15680, 16348, 16415, 17080, 18760, 19520, 19600, 20435, 21350, 21440, 23450, 23912, 24400, 26264, 26800, 27328, 28609, 29890, 30016, 32696, 32830, 34160, 37520, 39200, 40870, 42700, 46900, 47824, 48800, 52528, 53600, 57218, 59780, 65392, 65660, 68320, 74725, 75040, 78400, 81740, 82075, 85400, 93800, 95648, 97600, 102175, 105056, 107200, 114436, 119560, 130784, 131320, 136640, 143045, 149450, 150080, 163480, 164150, 170800, 187600, 191296, 200263, 204350, 210112, 228872, 239120, 261568, 262640, 286090, 298900, 326960, 328300, 341600, 375200, 400526, 408700, 457744, 478240, 525280, 572180, 597800, 653920, 656600, 683200, 715225, 750400, 801052, 817400, 915488, 956480, 1001315, 1050560, 1144360, 1195600, 1307840, 1313200, 1430450, 1602104, 1634800, 1830976, 2002630, 2288720, 2391200, 2626400, 2860900, 3204208, 3269600, 4005260, 4577440, 4782400, 5006575, 5252800, 5721800, 6408416, 6539200, 8010520, 9154880, 10013150, 11443600, 12816832, 16021040, 20026300, 22887200, 32042080, 40052600, 45774400, 64084160, 80105200, 160210400, 320420800]

約数ペア:

[(1, 320420800), (2, 160210400), (4, 80105200), (5, 64084160), (7, 45774400), (8, 40052600), (10, 32042080), (14, 22887200), (16, 20026300), (20, 16021040), (25, 12816832), (28, 11443600), (32, 10013150), (35, 9154880), (40, 8010520), (49, 6539200), (50, 6408416), (56, 5721800), (61, 5252800), (64, 5006575), (67, 4782400), (70, 4577440), (80, 4005260), (98, 3269600), (100, 3204208), (112, 2860900), (122, 2626400), (134, 2391200), (140, 2288720), (160, 2002630), (175, 1830976), (196, 1634800), (200, 1602104), (224, 1430450), (244, 1313200), (245, 1307840), (268, 1195600), (280, 1144360), (305, 1050560), (320, 1001315), (335, 956480), (350, 915488), (392, 817400), (400, 801052), (427, 750400), (448, 715225), (469, 683200), (488, 656600), (490, 653920), (536, 597800), (560, 572180), (610, 525280), (670, 478240), (700, 457744), (784, 408700), (800, 400526), (854, 375200), (938, 341600), (976, 328300), (980, 326960), (1072, 298900), (1120, 286090), (1220, 262640), (1225, 261568), (1340, 239120), (1400, 228872), (1525, 210112), (1568, 204350), (1600, 200263), (1675, 191296), (1708, 187600), (1876, 170800), (1952, 164150), (1960, 163480), (2135, 150080), (2144, 149450), (2240, 143045), (2345, 136640), (2440, 131320), (2450, 130784), (2680, 119560), (2800, 114436), (2989, 107200), (3050, 105056), (3136, 102175), (3283, 97600), (3350, 95648), (3416, 93800), (3752, 85400), (3904, 82075), (3920, 81740), (4087, 78400), (4270, 75040), (4288, 74725), (4690, 68320), (4880, 65660), (4900, 65392), (5360, 59780), (5600, 57218), (5978, 53600), (6100, 52528), (6566, 48800), (6700, 47824), (6832, 46900), (7504, 42700), (7840, 40870), (8174, 39200), (8540, 37520), (9380, 34160), (9760, 32830), (9800, 32696), (10675, 30016), (10720, 29890), (11200, 28609), (11725, 27328), (11956, 26800), (12200, 26264), (13132, 24400), (13400, 23912), (13664, 23450), (14945, 21440), (15008, 21350), (15680, 20435), (16348, 19600), (16415, 19520), (17080, 18760)]