257980306

素因数分解:

$2^1\times {\mathrm{43}}^1\times {\mathrm{317}}^1\times {\mathrm{9463}}^1$

素因数の和:9825

約数の個数: 16

約数和(自身を含む): 397260864

約数和(自身を除く): 139280558

約数列:

[1, 2, 43, 86, 317, 634, 9463, 13631, 18926, 27262, 406909, 813818, 2999771, 5999542, 128990153, 257980306]

約数ペア:

[(1, 257980306), (2, 128990153), (43, 5999542), (86, 2999771), (317, 813818), (634, 406909), (9463, 27262), (13631, 18926)]