390509546

素因数分解:

$2^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{661}}^1\times {\mathrm{2221}}^1$

素因数の和:2910

約数の個数: 32

約数和(自身を含む): 706062720

約数和(自身を除く): 315553174

約数列:

[1, 2, 7, 14, 19, 38, 133, 266, 661, 1322, 2221, 4442, 4627, 9254, 12559, 15547, 25118, 31094, 42199, 84398, 87913, 175826, 295393, 590786, 1468081, 2936162, 10276567, 20553134, 27893539, 55787078, 195254773, 390509546]

約数ペア:

[(1, 390509546), (2, 195254773), (7, 55787078), (14, 27893539), (19, 20553134), (38, 10276567), (133, 2936162), (266, 1468081), (661, 590786), (1322, 295393), (2221, 175826), (4442, 87913), (4627, 84398), (9254, 42199), (12559, 31094), (15547, 25118)]