123537728

素因数分解:

$2^6\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{877}}^1$

素因数の和:991

約数の個数: 56

約数和(自身を含む): 256909824

約数和(自身を除く): 133372096

約数列:

[1, 2, 4, 8, 16, 31, 32, 62, 64, 71, 124, 142, 248, 284, 496, 568, 877, 992, 1136, 1754, 1984, 2201, 2272, 3508, 4402, 4544, 7016, 8804, 14032, 17608, 27187, 28064, 35216, 54374, 56128, 62267, 70432, 108748, 124534, 140864, 217496, 249068, 434992, 498136, 869984, 996272, 1739968, 1930277, 1992544, 3860554, 3985088, 7721108, 15442216, 30884432, 61768864, 123537728]

約数ペア:

[(1, 123537728), (2, 61768864), (4, 30884432), (8, 15442216), (16, 7721108), (31, 3985088), (32, 3860554), (62, 1992544), (64, 1930277), (71, 1739968), (124, 996272), (142, 869984), (248, 498136), (284, 434992), (496, 249068), (568, 217496), (877, 140864), (992, 124534), (1136, 108748), (1754, 70432), (1984, 62267), (2201, 56128), (2272, 54374), (3508, 35216), (4402, 28064), (4544, 27187), (7016, 17608), (8804, 14032)]