257401935

素因数分解:

$3^3\times 5^1\times 7^1\times {\mathrm{272383}}^1$

素因数の和:272404

約数の個数: 32

約数和(自身を含む): 522977280

約数和(自身を除く): 265575345

約数列:

[1, 3, 5, 7, 9, 15, 21, 27, 35, 45, 63, 105, 135, 189, 315, 945, 272383, 817149, 1361915, 1906681, 2451447, 4085745, 5720043, 7354341, 9533405, 12257235, 17160129, 28600215, 36771705, 51480387, 85800645, 257401935]

約数ペア:

[(1, 257401935), (3, 85800645), (5, 51480387), (7, 36771705), (9, 28600215), (15, 17160129), (21, 12257235), (27, 9533405), (35, 7354341), (45, 5720043), (63, 4085745), (105, 2451447), (135, 1906681), (189, 1361915), (315, 817149), (945, 272383)]