20405696

素因数分解:

$2^6\times {\mathrm{19}}^1\times {\mathrm{97}}^1\times {\mathrm{173}}^1$

素因数の和:301

約数の個数: 56

約数和(自身を含む): 43312080

約数和(自身を除く): 22906384

約数列:

[1, 2, 4, 8, 16, 19, 32, 38, 64, 76, 97, 152, 173, 194, 304, 346, 388, 608, 692, 776, 1216, 1384, 1552, 1843, 2768, 3104, 3287, 3686, 5536, 6208, 6574, 7372, 11072, 13148, 14744, 16781, 26296, 29488, 33562, 52592, 58976, 67124, 105184, 117952, 134248, 210368, 268496, 318839, 536992, 637678, 1073984, 1275356, 2550712, 5101424, 10202848, 20405696]

約数ペア:

[(1, 20405696), (2, 10202848), (4, 5101424), (8, 2550712), (16, 1275356), (19, 1073984), (32, 637678), (38, 536992), (64, 318839), (76, 268496), (97, 210368), (152, 134248), (173, 117952), (194, 105184), (304, 67124), (346, 58976), (388, 52592), (608, 33562), (692, 29488), (776, 26296), (1216, 16781), (1384, 14744), (1552, 13148), (1843, 11072), (2768, 7372), (3104, 6574), (3287, 6208), (3686, 5536)]