638870404

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{9395153}}^1$

素因数の和:9395174

約数の個数: 12

約数和(自身を含む): 1183789404

約数和(自身を除く): 544919000

約数列:

[1, 2, 4, 17, 34, 68, 9395153, 18790306, 37580612, 159717601, 319435202, 638870404]

約数ペア:

[(1, 638870404), (2, 319435202), (4, 159717601), (17, 37580612), (34, 18790306), (68, 9395153)]