20808540865

素因数分解:

$5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{73}}^1\times {\mathrm{189401}}^1$

素因数の和:189529

約数の個数: 32

約数和(自身を含む): 29601259776

約数和(自身を除く): 8792718911

約数列:

[1, 5, 7, 35, 43, 73, 215, 301, 365, 511, 1505, 2555, 3139, 15695, 21973, 109865, 189401, 947005, 1325807, 6629035, 8144243, 13826273, 40721215, 57009701, 69131365, 96783911, 285048505, 483919555, 594529739, 2972648695, 4161708173, 20808540865]

約数ペア:

[(1, 20808540865), (5, 4161708173), (7, 2972648695), (35, 594529739), (43, 483919555), (73, 285048505), (215, 96783911), (301, 69131365), (365, 57009701), (511, 40721215), (1505, 13826273), (2555, 8144243), (3139, 6629035), (15695, 1325807), (21973, 947005), (109865, 189401)]