7986380

素因数分解:

$2^2\times 5^1\times {\mathrm{197}}^1\times {\mathrm{2027}}^1$

素因数の和:2233

約数の個数: 24

約数和(自身を含む): 16864848

約数和(自身を除く): 8878468

約数列:

[1, 2, 4, 5, 10, 20, 197, 394, 788, 985, 1970, 2027, 3940, 4054, 8108, 10135, 20270, 40540, 399319, 798638, 1597276, 1996595, 3993190, 7986380]

約数ペア:

[(1, 7986380), (2, 3993190), (4, 1996595), (5, 1597276), (10, 798638), (20, 399319), (197, 40540), (394, 20270), (788, 10135), (985, 8108), (1970, 4054), (2027, 3940)]