209970856

素因数分解:

$2^3\times {\mathrm{37}}^1\times {\mathrm{71}}^1\times {\mathrm{97}}^1\times {\mathrm{103}}^1$

素因数の和:314

約数の個数: 64

約数和(自身を含む): 418279680

約数和(自身を除く): 208308824

約数列:

[1, 2, 4, 8, 37, 71, 74, 97, 103, 142, 148, 194, 206, 284, 296, 388, 412, 568, 776, 824, 2627, 3589, 3811, 5254, 6887, 7178, 7313, 7622, 9991, 10508, 13774, 14356, 14626, 15244, 19982, 21016, 27548, 28712, 29252, 30488, 39964, 55096, 58504, 79928, 254819, 270581, 369667, 509638, 541162, 709361, 739334, 1019276, 1082324, 1418722, 1478668, 2038552, 2164648, 2837444, 2957336, 5674888, 26246357, 52492714, 104985428, 209970856]

約数ペア:

[(1, 209970856), (2, 104985428), (4, 52492714), (8, 26246357), (37, 5674888), (71, 2957336), (74, 2837444), (97, 2164648), (103, 2038552), (142, 1478668), (148, 1418722), (194, 1082324), (206, 1019276), (284, 739334), (296, 709361), (388, 541162), (412, 509638), (568, 369667), (776, 270581), (824, 254819), (2627, 79928), (3589, 58504), (3811, 55096), (5254, 39964), (6887, 30488), (7178, 29252), (7313, 28712), (7622, 27548), (9991, 21016), (10508, 19982), (13774, 15244), (14356, 14626)]