20978038368

素因数分解:

$2^5\times 3^5\times 7^2\times {\mathrm{55057}}^1$

素因数の和:55096

約数の個数: 216

約数和(自身を含む): 71967633192

約数和(自身を除く): 50989594824

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 16, 18, 21, 24, 27, 28, 32, 36, 42, 48, 49, 54, 56, 63, 72, 81, 84, 96, 98, 108, 112, 126, 144, 147, 162, 168, 189, 196, 216, 224, 243, 252, 288, 294, 324, 336, 378, 392, 432, 441, 486, 504, 567, 588, 648, 672, 756, 784, 864, 882, 972, 1008, 1134, 1176, 1296, 1323, 1512, 1568, 1701, 1764, 1944, 2016, 2268, 2352, 2592, 2646, 3024, 3402, 3528, 3888, 3969, 4536, 4704, 5292, 6048, 6804, 7056, 7776, 7938, 9072, 10584, 11907, 13608, 14112, 15876, 18144, 21168, 23814, 27216, 31752, 42336, 47628, 54432, 55057, 63504, 95256, 110114, 127008, 165171, 190512, 220228, 330342, 381024, 385399, 440456, 495513, 660684, 770798, 880912, 991026, 1156197, 1321368, 1486539, 1541596, 1761824, 1982052, 2312394, 2642736, 2697793, 2973078, 3083192, 3468591, 3964104, 4459617, 4624788, 5285472, 5395586, 5946156, 6166384, 6937182, 7928208, 8093379, 8919234, 9249576, 10405773, 10791172, 11892312, 12332768, 13378851, 13874364, 15856416, 16186758, 17838468, 18499152, 20811546, 21582344, 23784624, 24280137, 26757702, 27748728, 31217319, 32373516, 35676936, 36998304, 41623092, 43164688, 47569248, 48560274, 53515404, 55497456, 62434638, 64747032, 71353872, 72840411, 83246184, 86329376, 93651957, 97120548, 107030808, 110994912, 124869276, 129494064, 142707744, 145680822, 166492368, 187303914, 194241096, 214061616, 218521233, 249738552, 258988128, 291361644, 332984736, 374607828, 388482192, 428123232, 437042466, 499477104, 582723288, 655563699, 749215656, 776964384, 874084932, 998954208, 1165446576, 1311127398, 1498431312, 1748169864, 2330893152, 2622254796, 2996862624, 3496339728, 5244509592, 6992679456, 10489019184, 20978038368]

約数ペア:

[(1, 20978038368), (2, 10489019184), (3, 6992679456), (4, 5244509592), (6, 3496339728), (7, 2996862624), (8, 2622254796), (9, 2330893152), (12, 1748169864), (14, 1498431312), (16, 1311127398), (18, 1165446576), (21, 998954208), (24, 874084932), (27, 776964384), (28, 749215656), (32, 655563699), (36, 582723288), (42, 499477104), (48, 437042466), (49, 428123232), (54, 388482192), (56, 374607828), (63, 332984736), (72, 291361644), (81, 258988128), (84, 249738552), (96, 218521233), (98, 214061616), (108, 194241096), (112, 187303914), (126, 166492368), (144, 145680822), (147, 142707744), (162, 129494064), (168, 124869276), (189, 110994912), (196, 107030808), (216, 97120548), (224, 93651957), (243, 86329376), (252, 83246184), (288, 72840411), (294, 71353872), (324, 64747032), (336, 62434638), (378, 55497456), (392, 53515404), (432, 48560274), (441, 47569248), (486, 43164688), (504, 41623092), (567, 36998304), (588, 35676936), (648, 32373516), (672, 31217319), (756, 27748728), (784, 26757702), (864, 24280137), (882, 23784624), (972, 21582344), (1008, 20811546), (1134, 18499152), (1176, 17838468), (1296, 16186758), (1323, 15856416), (1512, 13874364), (1568, 13378851), (1701, 12332768), (1764, 11892312), (1944, 10791172), (2016, 10405773), (2268, 9249576), (2352, 8919234), (2592, 8093379), (2646, 7928208), (3024, 6937182), (3402, 6166384), (3528, 5946156), (3888, 5395586), (3969, 5285472), (4536, 4624788), (4704, 4459617), (5292, 3964104), (6048, 3468591), (6804, 3083192), (7056, 2973078), (7776, 2697793), (7938, 2642736), (9072, 2312394), (10584, 1982052), (11907, 1761824), (13608, 1541596), (14112, 1486539), (15876, 1321368), (18144, 1156197), (21168, 991026), (23814, 880912), (27216, 770798), (31752, 660684), (42336, 495513), (47628, 440456), (54432, 385399), (55057, 381024), (63504, 330342), (95256, 220228), (110114, 190512), (127008, 165171)]