648899456

素因数分解:

$2^7\times {\mathrm{41}}^1\times {\mathrm{61}}^1\times {\mathrm{2027}}^1$

素因数の和:2143

約数の個数: 64

約数和(自身を含む): 1346632560

約数和(自身を除く): 697733104

約数列:

[1, 2, 4, 8, 16, 32, 41, 61, 64, 82, 122, 128, 164, 244, 328, 488, 656, 976, 1312, 1952, 2027, 2501, 2624, 3904, 4054, 5002, 5248, 7808, 8108, 10004, 16216, 20008, 32432, 40016, 64864, 80032, 83107, 123647, 129728, 160064, 166214, 247294, 259456, 320128, 332428, 494588, 664856, 989176, 1329712, 1978352, 2659424, 3956704, 5069527, 5318848, 7913408, 10139054, 10637696, 15826816, 20278108, 40556216, 81112432, 162224864, 324449728, 648899456]

約数ペア:

[(1, 648899456), (2, 324449728), (4, 162224864), (8, 81112432), (16, 40556216), (32, 20278108), (41, 15826816), (61, 10637696), (64, 10139054), (82, 7913408), (122, 5318848), (128, 5069527), (164, 3956704), (244, 2659424), (328, 1978352), (488, 1329712), (656, 989176), (976, 664856), (1312, 494588), (1952, 332428), (2027, 320128), (2501, 259456), (2624, 247294), (3904, 166214), (4054, 160064), (5002, 129728), (5248, 123647), (7808, 83107), (8108, 80032), (10004, 64864), (16216, 40016), (20008, 32432)]