18856370

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{4679}}^1$

素因数の和:4730

約数の個数: 32

約数和(自身を含む): 37739520

約数和(自身を除く): 18883150

約数列:

[1, 2, 5, 10, 13, 26, 31, 62, 65, 130, 155, 310, 403, 806, 2015, 4030, 4679, 9358, 23395, 46790, 60827, 121654, 145049, 290098, 304135, 608270, 725245, 1450490, 1885637, 3771274, 9428185, 18856370]

約数ペア:

[(1, 18856370), (2, 9428185), (5, 3771274), (10, 1885637), (13, 1450490), (26, 725245), (31, 608270), (62, 304135), (65, 290098), (130, 145049), (155, 121654), (310, 60827), (403, 46790), (806, 23395), (2015, 9358), (4030, 4679)]