77807680

素因数分解:

$2^6\times 5^1\times {\mathrm{243149}}^1$

素因数の和:243166

約数の個数: 28

約数和(自身を含む): 185280300

約数和(自身を除く): 107472620

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 243149, 486298, 972596, 1215745, 1945192, 2431490, 3890384, 4862980, 7780768, 9725960, 15561536, 19451920, 38903840, 77807680]

約数ペア:

[(1, 77807680), (2, 38903840), (4, 19451920), (5, 15561536), (8, 9725960), (10, 7780768), (16, 4862980), (20, 3890384), (32, 2431490), (40, 1945192), (64, 1215745), (80, 972596), (160, 486298), (320, 243149)]