290499286

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{97}}^1\times {\mathrm{19447}}^1$

素因数の和:19564

約数の個数: 32

約数和(自身を含む): 548900352

約数和(自身を除く): 258401066

約数列:

[1, 2, 7, 11, 14, 22, 77, 97, 154, 194, 679, 1067, 1358, 2134, 7469, 14938, 19447, 38894, 136129, 213917, 272258, 427834, 1497419, 1886359, 2994838, 3772718, 13204513, 20749949, 26409026, 41499898, 145249643, 290499286]

約数ペア:

[(1, 290499286), (2, 145249643), (7, 41499898), (11, 26409026), (14, 20749949), (22, 13204513), (77, 3772718), (97, 2994838), (154, 1886359), (194, 1497419), (679, 427834), (1067, 272258), (1358, 213917), (2134, 136129), (7469, 38894), (14938, 19447)]