257508

素因数分解:

$2^2\times 3^2\times {\mathrm{23}}^1\times {\mathrm{311}}^1$

素因数の和:344

約数の個数: 36

約数和(自身を含む): 681408

約数和(自身を除く): 423900

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 23, 36, 46, 69, 92, 138, 207, 276, 311, 414, 622, 828, 933, 1244, 1866, 2799, 3732, 5598, 7153, 11196, 14306, 21459, 28612, 42918, 64377, 85836, 128754, 257508]

約数ペア:

[(1, 257508), (2, 128754), (3, 85836), (4, 64377), (6, 42918), (9, 28612), (12, 21459), (18, 14306), (23, 11196), (36, 7153), (46, 5598), (69, 3732), (92, 2799), (138, 1866), (207, 1244), (276, 933), (311, 828), (414, 622)]