257029136

素因数分解:

$2^4\times 7^1\times {\mathrm{13}}^1\times {\mathrm{176531}}^1$

素因数の和:176559

約数の個数: 40

約数和(自身を含む): 612919104

約数和(自身を除く): 355889968

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 52, 56, 91, 104, 112, 182, 208, 364, 728, 1456, 176531, 353062, 706124, 1235717, 1412248, 2294903, 2471434, 2824496, 4589806, 4942868, 9179612, 9885736, 16064321, 18359224, 19771472, 32128642, 36718448, 64257284, 128514568, 257029136]

約数ペア:

[(1, 257029136), (2, 128514568), (4, 64257284), (7, 36718448), (8, 32128642), (13, 19771472), (14, 18359224), (16, 16064321), (26, 9885736), (28, 9179612), (52, 4942868), (56, 4589806), (91, 2824496), (104, 2471434), (112, 2294903), (182, 1412248), (208, 1235717), (364, 706124), (728, 353062), (1456, 176531)]