668501638

素因数分解:

$2^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{137}}^1\times {\mathrm{8501}}^1$

素因数の和:8688

約数の個数: 32

約数和(自身を含む): 1182662208

約数和(自身を除く): 514160570

約数列:

[1, 2, 7, 14, 41, 82, 137, 274, 287, 574, 959, 1918, 5617, 8501, 11234, 17002, 39319, 59507, 78638, 119014, 348541, 697082, 1164637, 2329274, 2439787, 4879574, 8152459, 16304918, 47750117, 95500234, 334250819, 668501638]

約数ペア:

[(1, 668501638), (2, 334250819), (7, 95500234), (14, 47750117), (41, 16304918), (82, 8152459), (137, 4879574), (274, 2439787), (287, 2329274), (574, 1164637), (959, 697082), (1918, 348541), (5617, 119014), (8501, 78638), (11234, 59507), (17002, 39319)]