20554072

素因数分解:

$2^3\times 7^1\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{547}}^1$

素因数の和:632

約数の個数: 64

約数和(自身を含む): 48925440

約数和(自身を除く): 28371368

約数列:

[1, 2, 4, 7, 8, 11, 14, 22, 28, 44, 56, 61, 77, 88, 122, 154, 244, 308, 427, 488, 547, 616, 671, 854, 1094, 1342, 1708, 2188, 2684, 3416, 3829, 4376, 4697, 5368, 6017, 7658, 9394, 12034, 15316, 18788, 24068, 30632, 33367, 37576, 42119, 48136, 66734, 84238, 133468, 168476, 233569, 266936, 336952, 367037, 467138, 734074, 934276, 1468148, 1868552, 2569259, 2936296, 5138518, 10277036, 20554072]

約数ペア:

[(1, 20554072), (2, 10277036), (4, 5138518), (7, 2936296), (8, 2569259), (11, 1868552), (14, 1468148), (22, 934276), (28, 734074), (44, 467138), (56, 367037), (61, 336952), (77, 266936), (88, 233569), (122, 168476), (154, 133468), (244, 84238), (308, 66734), (427, 48136), (488, 42119), (547, 37576), (616, 33367), (671, 30632), (854, 24068), (1094, 18788), (1342, 15316), (1708, 12034), (2188, 9394), (2684, 7658), (3416, 6017), (3829, 5368), (4376, 4697)]