258328

素因数分解:

$2^3\times 7^2\times {\mathrm{659}}^1$

素因数の和:679

約数の個数: 24

約数和(自身を含む): 564300

約数和(自身を除く): 305972

約数列:

[1, 2, 4, 7, 8, 14, 28, 49, 56, 98, 196, 392, 659, 1318, 2636, 4613, 5272, 9226, 18452, 32291, 36904, 64582, 129164, 258328]

約数ペア:

[(1, 258328), (2, 129164), (4, 64582), (7, 36904), (8, 32291), (14, 18452), (28, 9226), (49, 5272), (56, 4613), (98, 2636), (196, 1318), (392, 659)]