8019980

素因数分解:

$2^2\times 5^1\times {\mathrm{137}}^1\times {\mathrm{2927}}^1$

素因数の和:3073

約数の個数: 24

約数和(自身を含む): 16970688

約数和(自身を除く): 8950708

約数列:

[1, 2, 4, 5, 10, 20, 137, 274, 548, 685, 1370, 2740, 2927, 5854, 11708, 14635, 29270, 58540, 400999, 801998, 1603996, 2004995, 4009990, 8019980]

約数ペア:

[(1, 8019980), (2, 4009990), (4, 2004995), (5, 1603996), (10, 801998), (20, 400999), (137, 58540), (274, 29270), (548, 14635), (685, 11708), (1370, 5854), (2740, 2927)]