661821440

素因数分解:

$2^{11}\times 5^1\times 7^2\times {\mathrm{1319}}^1$

素因数の和:1360

約数の個数: 144

約数和(自身を含む): 1848646800

約数和(自身を除く): 1186825360

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 49, 56, 64, 70, 80, 98, 112, 128, 140, 160, 196, 224, 245, 256, 280, 320, 392, 448, 490, 512, 560, 640, 784, 896, 980, 1024, 1120, 1280, 1319, 1568, 1792, 1960, 2048, 2240, 2560, 2638, 3136, 3584, 3920, 4480, 5120, 5276, 6272, 6595, 7168, 7840, 8960, 9233, 10240, 10552, 12544, 13190, 14336, 15680, 17920, 18466, 21104, 25088, 26380, 31360, 35840, 36932, 42208, 46165, 50176, 52760, 62720, 64631, 71680, 73864, 84416, 92330, 100352, 105520, 125440, 129262, 147728, 168832, 184660, 211040, 250880, 258524, 295456, 323155, 337664, 369320, 422080, 501760, 517048, 590912, 646310, 675328, 738640, 844160, 1034096, 1181824, 1292620, 1350656, 1477280, 1688320, 2068192, 2363648, 2585240, 2701312, 2954560, 3376640, 4136384, 4727296, 5170480, 5909120, 6753280, 8272768, 9454592, 10340960, 11818240, 13506560, 16545536, 18909184, 20681920, 23636480, 33091072, 41363840, 47272960, 66182144, 82727680, 94545920, 132364288, 165455360, 330910720, 661821440]

約数ペア:

[(1, 661821440), (2, 330910720), (4, 165455360), (5, 132364288), (7, 94545920), (8, 82727680), (10, 66182144), (14, 47272960), (16, 41363840), (20, 33091072), (28, 23636480), (32, 20681920), (35, 18909184), (40, 16545536), (49, 13506560), (56, 11818240), (64, 10340960), (70, 9454592), (80, 8272768), (98, 6753280), (112, 5909120), (128, 5170480), (140, 4727296), (160, 4136384), (196, 3376640), (224, 2954560), (245, 2701312), (256, 2585240), (280, 2363648), (320, 2068192), (392, 1688320), (448, 1477280), (490, 1350656), (512, 1292620), (560, 1181824), (640, 1034096), (784, 844160), (896, 738640), (980, 675328), (1024, 646310), (1120, 590912), (1280, 517048), (1319, 501760), (1568, 422080), (1792, 369320), (1960, 337664), (2048, 323155), (2240, 295456), (2560, 258524), (2638, 250880), (3136, 211040), (3584, 184660), (3920, 168832), (4480, 147728), (5120, 129262), (5276, 125440), (6272, 105520), (6595, 100352), (7168, 92330), (7840, 84416), (8960, 73864), (9233, 71680), (10240, 64631), (10552, 62720), (12544, 52760), (13190, 50176), (14336, 46165), (15680, 42208), (17920, 36932), (18466, 35840), (21104, 31360), (25088, 26380)]