28149724

素因数分解:

$2^2\times {\mathrm{139}}^1\times {\mathrm{197}}^1\times {\mathrm{257}}^1$

素因数の和:597

約数の個数: 24

約数和(自身を含む): 50062320

約数和(自身を除く): 21912596

約数列:

[1, 2, 4, 139, 197, 257, 278, 394, 514, 556, 788, 1028, 27383, 35723, 50629, 54766, 71446, 101258, 109532, 142892, 202516, 7037431, 14074862, 28149724]

約数ペア:

[(1, 28149724), (2, 14074862), (4, 7037431), (139, 202516), (197, 142892), (257, 109532), (278, 101258), (394, 71446), (514, 54766), (556, 50629), (788, 35723), (1028, 27383)]