639711152

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{2104313}}^1$

素因数の和:2104340

約数の個数: 20

約数和(自身を含む): 1304674680

約数和(自身を除く): 664963528

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 304, 2104313, 4208626, 8417252, 16834504, 33669008, 39981947, 79963894, 159927788, 319855576, 639711152]

約数ペア:

[(1, 639711152), (2, 319855576), (4, 159927788), (8, 79963894), (16, 39981947), (19, 33669008), (38, 16834504), (76, 8417252), (152, 4208626), (304, 2104313)]