257188461

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{5099}}^1$

素因数の和:5185

約数の個数: 32

約数和(自身を含む): 387763200

約数和(自身を除く): 130574739

約数列:

[1, 3, 17, 23, 43, 51, 69, 129, 391, 731, 989, 1173, 2193, 2967, 5099, 15297, 16813, 50439, 86683, 117277, 219257, 260049, 351831, 657771, 1993709, 3727369, 5042911, 5981127, 11182107, 15128733, 85729487, 257188461]

約数ペア:

[(1, 257188461), (3, 85729487), (17, 15128733), (23, 11182107), (43, 5981127), (51, 5042911), (69, 3727369), (129, 1993709), (391, 657771), (731, 351831), (989, 260049), (1173, 219257), (2193, 117277), (2967, 86683), (5099, 50439), (15297, 16813)]