20512960160

素因数分解:

$2^5\times 5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{237859}}^1$

素因数の和:237899

約数の個数: 144

約数和(自身を含む): 61499178720

約数和(自身を除く): 40986218560

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 16, 20, 22, 28, 32, 35, 40, 44, 49, 55, 56, 70, 77, 80, 88, 98, 110, 112, 140, 154, 160, 176, 196, 220, 224, 245, 280, 308, 352, 385, 392, 440, 490, 539, 560, 616, 770, 784, 880, 980, 1078, 1120, 1232, 1540, 1568, 1760, 1960, 2156, 2464, 2695, 3080, 3920, 4312, 5390, 6160, 7840, 8624, 10780, 12320, 17248, 21560, 43120, 86240, 237859, 475718, 951436, 1189295, 1665013, 1902872, 2378590, 2616449, 3330026, 3805744, 4757180, 5232898, 6660052, 7611488, 8325065, 9514360, 10465796, 11655091, 13082245, 13320104, 16650130, 18315143, 19028720, 20931592, 23310182, 26164490, 26640208, 33300260, 36630286, 38057440, 41863184, 46620364, 52328980, 53280416, 58275455, 66600520, 73260572, 83726368, 91575715, 93240728, 104657960, 116550910, 128206001, 133201040, 146521144, 183151430, 186481456, 209315920, 233101820, 256412002, 266402080, 293042288, 366302860, 372962912, 418631840, 466203640, 512824004, 586084576, 641030005, 732605720, 932407280, 1025648008, 1282060010, 1465211440, 1864814560, 2051296016, 2564120020, 2930422880, 4102592032, 5128240040, 10256480080, 20512960160]

約数ペア:

[(1, 20512960160), (2, 10256480080), (4, 5128240040), (5, 4102592032), (7, 2930422880), (8, 2564120020), (10, 2051296016), (11, 1864814560), (14, 1465211440), (16, 1282060010), (20, 1025648008), (22, 932407280), (28, 732605720), (32, 641030005), (35, 586084576), (40, 512824004), (44, 466203640), (49, 418631840), (55, 372962912), (56, 366302860), (70, 293042288), (77, 266402080), (80, 256412002), (88, 233101820), (98, 209315920), (110, 186481456), (112, 183151430), (140, 146521144), (154, 133201040), (160, 128206001), (176, 116550910), (196, 104657960), (220, 93240728), (224, 91575715), (245, 83726368), (280, 73260572), (308, 66600520), (352, 58275455), (385, 53280416), (392, 52328980), (440, 46620364), (490, 41863184), (539, 38057440), (560, 36630286), (616, 33300260), (770, 26640208), (784, 26164490), (880, 23310182), (980, 20931592), (1078, 19028720), (1120, 18315143), (1232, 16650130), (1540, 13320104), (1568, 13082245), (1760, 11655091), (1960, 10465796), (2156, 9514360), (2464, 8325065), (2695, 7611488), (3080, 6660052), (3920, 5232898), (4312, 4757180), (5390, 3805744), (6160, 3330026), (7840, 2616449), (8624, 2378590), (10780, 1902872), (12320, 1665013), (17248, 1189295), (21560, 951436), (43120, 475718), (86240, 237859)]