245686

素因数分解:

$2^1\times 7^2\times {\mathrm{23}}^1\times {\mathrm{109}}^1$

素因数の和:148

約数の個数: 24

約数和(自身を含む): 451440

約数和(自身を除く): 205754

約数列:

[1, 2, 7, 14, 23, 46, 49, 98, 109, 161, 218, 322, 763, 1127, 1526, 2254, 2507, 5014, 5341, 10682, 17549, 35098, 122843, 245686]

約数ペア:

[(1, 245686), (2, 122843), (7, 35098), (14, 17549), (23, 10682), (46, 5341), (49, 5014), (98, 2507), (109, 2254), (161, 1526), (218, 1127), (322, 763)]