648126464

素因数分解:

$2^{13}\times {\mathrm{61}}^1\times {\mathrm{1297}}^1$

素因数の和:1384

約数の個数: 56

約数和(自身を含む): 1318438308

約数和(自身を除く): 670311844

約数列:

[1, 2, 4, 8, 16, 32, 61, 64, 122, 128, 244, 256, 488, 512, 976, 1024, 1297, 1952, 2048, 2594, 3904, 4096, 5188, 7808, 8192, 10376, 15616, 20752, 31232, 41504, 62464, 79117, 83008, 124928, 158234, 166016, 249856, 316468, 332032, 499712, 632936, 664064, 1265872, 1328128, 2531744, 2656256, 5063488, 5312512, 10126976, 10625024, 20253952, 40507904, 81015808, 162031616, 324063232, 648126464]

約数ペア:

[(1, 648126464), (2, 324063232), (4, 162031616), (8, 81015808), (16, 40507904), (32, 20253952), (61, 10625024), (64, 10126976), (122, 5312512), (128, 5063488), (244, 2656256), (256, 2531744), (488, 1328128), (512, 1265872), (976, 664064), (1024, 632936), (1297, 499712), (1952, 332032), (2048, 316468), (2594, 249856), (3904, 166016), (4096, 158234), (5188, 124928), (7808, 83008), (8192, 79117), (10376, 62464), (15616, 41504), (20752, 31232)]