123257393

素因数分解:

$7^3\times {\mathrm{43}}^1\times {\mathrm{61}}^1\times {\mathrm{137}}^1$

素因数の和:262

約数の個数: 32

約数和(自身を含む): 150585600

約数和(自身を除く): 27328207

約数列:

[1, 7, 43, 49, 61, 137, 301, 343, 427, 959, 2107, 2623, 2989, 5891, 6713, 8357, 14749, 18361, 20923, 41237, 46991, 58499, 128527, 288659, 359351, 409493, 899689, 2020613, 2515457, 2866451, 17608199, 123257393]

約数ペア:

[(1, 123257393), (7, 17608199), (43, 2866451), (49, 2515457), (61, 2020613), (137, 899689), (301, 409493), (343, 359351), (427, 288659), (959, 128527), (2107, 58499), (2623, 46991), (2989, 41237), (5891, 20923), (6713, 18361), (8357, 14749)]