138458236

素因数分解:

$2^2\times 7^1\times {\mathrm{71}}^1\times {\mathrm{257}}^1\times {\mathrm{271}}^1$

素因数の和:610

約数の個数: 48

約数和(自身を含む): 282949632

約数和(自身を除く): 144491396

約数列:

[1, 2, 4, 7, 14, 28, 71, 142, 257, 271, 284, 497, 514, 542, 994, 1028, 1084, 1799, 1897, 1988, 3598, 3794, 7196, 7588, 18247, 19241, 36494, 38482, 69647, 72988, 76964, 127729, 134687, 139294, 255458, 269374, 278588, 487529, 510916, 538748, 975058, 1950116, 4944937, 9889874, 19779748, 34614559, 69229118, 138458236]

約数ペア:

[(1, 138458236), (2, 69229118), (4, 34614559), (7, 19779748), (14, 9889874), (28, 4944937), (71, 1950116), (142, 975058), (257, 538748), (271, 510916), (284, 487529), (497, 278588), (514, 269374), (542, 255458), (994, 139294), (1028, 134687), (1084, 127729), (1799, 76964), (1897, 72988), (1988, 69647), (3598, 38482), (3794, 36494), (7196, 19241), (7588, 18247)]