79779520

素因数分解:

$2^6\times 5^1\times {\mathrm{249311}}^1$

素因数の和:249328

約数の個数: 28

約数和(自身を含む): 189975744

約数和(自身を除く): 110196224

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 249311, 498622, 997244, 1246555, 1994488, 2493110, 3988976, 4986220, 7977952, 9972440, 15955904, 19944880, 39889760, 79779520]

約数ペア:

[(1, 79779520), (2, 39889760), (4, 19944880), (5, 15955904), (8, 9972440), (10, 7977952), (16, 4986220), (20, 3988976), (32, 2493110), (40, 1994488), (64, 1246555), (80, 997244), (160, 498622), (320, 249311)]