20539402016

素因数分解:

$2^5\times 7^1\times {\mathrm{43}}^2\times {\mathrm{101}}^1\times {\mathrm{491}}^1$

素因数の和:695

約数の個数: 144

約数和(自身を含む): 47879149248

約数和(自身を除く): 27339747232

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 43, 56, 86, 101, 112, 172, 202, 224, 301, 344, 404, 491, 602, 688, 707, 808, 982, 1204, 1376, 1414, 1616, 1849, 1964, 2408, 2828, 3232, 3437, 3698, 3928, 4343, 4816, 5656, 6874, 7396, 7856, 8686, 9632, 11312, 12943, 13748, 14792, 15712, 17372, 21113, 22624, 25886, 27496, 29584, 30401, 34744, 42226, 49591, 51772, 54992, 59168, 60802, 69488, 84452, 99182, 103544, 109984, 121604, 138976, 147791, 168904, 186749, 198364, 207088, 243208, 295582, 337808, 347137, 373498, 396728, 414176, 486416, 591164, 675616, 694274, 746996, 793456, 907859, 972832, 1182328, 1307243, 1388548, 1493992, 1586912, 1815718, 2132413, 2364656, 2614486, 2777096, 2987984, 3631436, 4264826, 4729312, 5228972, 5554192, 5975968, 6355013, 7262872, 8529652, 10457944, 11108384, 12710026, 14525744, 14926891, 17059304, 20915888, 25420052, 29051488, 29853782, 34118608, 41831776, 50840104, 59707564, 68237216, 91693759, 101680208, 119415128, 183387518, 203360416, 238830256, 366775036, 477660512, 641856313, 733550072, 1283712626, 1467100144, 2567425252, 2934200288, 5134850504, 10269701008, 20539402016]

約数ペア:

[(1, 20539402016), (2, 10269701008), (4, 5134850504), (7, 2934200288), (8, 2567425252), (14, 1467100144), (16, 1283712626), (28, 733550072), (32, 641856313), (43, 477660512), (56, 366775036), (86, 238830256), (101, 203360416), (112, 183387518), (172, 119415128), (202, 101680208), (224, 91693759), (301, 68237216), (344, 59707564), (404, 50840104), (491, 41831776), (602, 34118608), (688, 29853782), (707, 29051488), (808, 25420052), (982, 20915888), (1204, 17059304), (1376, 14926891), (1414, 14525744), (1616, 12710026), (1849, 11108384), (1964, 10457944), (2408, 8529652), (2828, 7262872), (3232, 6355013), (3437, 5975968), (3698, 5554192), (3928, 5228972), (4343, 4729312), (4816, 4264826), (5656, 3631436), (6874, 2987984), (7396, 2777096), (7856, 2614486), (8686, 2364656), (9632, 2132413), (11312, 1815718), (12943, 1586912), (13748, 1493992), (14792, 1388548), (15712, 1307243), (17372, 1182328), (21113, 972832), (22624, 907859), (25886, 793456), (27496, 746996), (29584, 694274), (30401, 675616), (34744, 591164), (42226, 486416), (49591, 414176), (51772, 396728), (54992, 373498), (59168, 347137), (60802, 337808), (69488, 295582), (84452, 243208), (99182, 207088), (103544, 198364), (109984, 186749), (121604, 168904), (138976, 147791)]