131209856

素因数分解:

$2^7\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{769}}^1$

素因数の和:857

約数の個数: 64

約数和(自身を含む): 276460800

約数和(自身を除く): 145250944

約数列:

[1, 2, 4, 8, 16, 31, 32, 43, 62, 64, 86, 124, 128, 172, 248, 344, 496, 688, 769, 992, 1333, 1376, 1538, 1984, 2666, 2752, 3076, 3968, 5332, 5504, 6152, 10664, 12304, 21328, 23839, 24608, 33067, 42656, 47678, 49216, 66134, 85312, 95356, 98432, 132268, 170624, 190712, 264536, 381424, 529072, 762848, 1025077, 1058144, 1525696, 2050154, 2116288, 3051392, 4100308, 4232576, 8200616, 16401232, 32802464, 65604928, 131209856]

約数ペア:

[(1, 131209856), (2, 65604928), (4, 32802464), (8, 16401232), (16, 8200616), (31, 4232576), (32, 4100308), (43, 3051392), (62, 2116288), (64, 2050154), (86, 1525696), (124, 1058144), (128, 1025077), (172, 762848), (248, 529072), (344, 381424), (496, 264536), (688, 190712), (769, 170624), (992, 132268), (1333, 98432), (1376, 95356), (1538, 85312), (1984, 66134), (2666, 49216), (2752, 47678), (3076, 42656), (3968, 33067), (5332, 24608), (5504, 23839), (6152, 21328), (10664, 12304)]