257337892

素因数分解:

$2^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{409}}^1\times {\mathrm{977}}^1$

素因数の和:1420

約数の個数: 48

約数和(自身を含む): 538917120

約数和(自身を除く): 281579228

約数列:

[1, 2, 4, 7, 14, 23, 28, 46, 92, 161, 322, 409, 644, 818, 977, 1636, 1954, 2863, 3908, 5726, 6839, 9407, 11452, 13678, 18814, 22471, 27356, 37628, 44942, 65849, 89884, 131698, 157297, 263396, 314594, 399593, 629188, 799186, 1598372, 2797151, 5594302, 9190639, 11188604, 18381278, 36762556, 64334473, 128668946, 257337892]

約数ペア:

[(1, 257337892), (2, 128668946), (4, 64334473), (7, 36762556), (14, 18381278), (23, 11188604), (28, 9190639), (46, 5594302), (92, 2797151), (161, 1598372), (322, 799186), (409, 629188), (644, 399593), (818, 314594), (977, 263396), (1636, 157297), (1954, 131698), (2863, 89884), (3908, 65849), (5726, 44942), (6839, 37628), (9407, 27356), (11452, 22471), (13678, 18814)]