639035618

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{439}}^1\times {\mathrm{55987}}^1$

素因数の和:56441

約数の個数: 16

約数和(自身を含む): 1034658240

約数和(自身を除く): 395622622

約数列:

[1, 2, 13, 26, 439, 878, 5707, 11414, 55987, 111974, 727831, 1455662, 24578293, 49156586, 319517809, 639035618]

約数ペア:

[(1, 639035618), (2, 319517809), (13, 49156586), (26, 24578293), (439, 1455662), (878, 727831), (5707, 111974), (11414, 55987)]