156778518

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{2009981}}^1$

素因数の和:2009999

約数の個数: 16

約数和(自身を含む): 337676976

約数和(自身を除く): 180898458

約数列:

[1, 2, 3, 6, 13, 26, 39, 78, 2009981, 4019962, 6029943, 12059886, 26129753, 52259506, 78389259, 156778518]

約数ペア:

[(1, 156778518), (2, 78389259), (3, 52259506), (6, 26129753), (13, 12059886), (26, 6029943), (39, 4019962), (78, 2009981)]