278540268

素因数分解:

$2^2\times 3^1\times {\mathrm{163}}^1\times {\mathrm{142403}}^1$

素因数の和:142573

約数の個数: 24

約数和(自身を含む): 653919168

約数和(自身を除く): 375378900

約数列:

[1, 2, 3, 4, 6, 12, 163, 326, 489, 652, 978, 1956, 142403, 284806, 427209, 569612, 854418, 1708836, 23211689, 46423378, 69635067, 92846756, 139270134, 278540268]

約数ペア:

[(1, 278540268), (2, 139270134), (3, 92846756), (4, 69635067), (6, 46423378), (12, 23211689), (163, 1708836), (326, 854418), (489, 569612), (652, 427209), (978, 284806), (1956, 142403)]