20512781568

素因数分解:

$2^8\times 3^2\times {\mathrm{673}}^1\times {\mathrm{13229}}^1$

素因数の和:13924

約数の個数: 108

約数和(自身を含む): 59235763860

約数和(自身を除く): 38722982292

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 32, 36, 48, 64, 72, 96, 128, 144, 192, 256, 288, 384, 576, 673, 768, 1152, 1346, 2019, 2304, 2692, 4038, 5384, 6057, 8076, 10768, 12114, 13229, 16152, 21536, 24228, 26458, 32304, 39687, 43072, 48456, 52916, 64608, 79374, 86144, 96912, 105832, 119061, 129216, 158748, 172288, 193824, 211664, 238122, 258432, 317496, 387648, 423328, 476244, 516864, 634992, 775296, 846656, 952488, 1269984, 1550592, 1693312, 1904976, 2539968, 3386624, 3809952, 5079936, 7619904, 8903117, 10159872, 15239808, 17806234, 26709351, 30479616, 35612468, 53418702, 71224936, 80128053, 106837404, 142449872, 160256106, 213674808, 284899744, 320512212, 427349616, 569799488, 641024424, 854699232, 1139598976, 1282048848, 1709398464, 2279197952, 2564097696, 3418796928, 5128195392, 6837593856, 10256390784, 20512781568]

約数ペア:

[(1, 20512781568), (2, 10256390784), (3, 6837593856), (4, 5128195392), (6, 3418796928), (8, 2564097696), (9, 2279197952), (12, 1709398464), (16, 1282048848), (18, 1139598976), (24, 854699232), (32, 641024424), (36, 569799488), (48, 427349616), (64, 320512212), (72, 284899744), (96, 213674808), (128, 160256106), (144, 142449872), (192, 106837404), (256, 80128053), (288, 71224936), (384, 53418702), (576, 35612468), (673, 30479616), (768, 26709351), (1152, 17806234), (1346, 15239808), (2019, 10159872), (2304, 8903117), (2692, 7619904), (4038, 5079936), (5384, 3809952), (6057, 3386624), (8076, 2539968), (10768, 1904976), (12114, 1693312), (13229, 1550592), (16152, 1269984), (21536, 952488), (24228, 846656), (26458, 775296), (32304, 634992), (39687, 516864), (43072, 476244), (48456, 423328), (52916, 387648), (64608, 317496), (79374, 258432), (86144, 238122), (96912, 211664), (105832, 193824), (119061, 172288), (129216, 158748)]