80960780

素因数分解:

$2^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{51241}}^1$

素因数の和:51329

約数の個数: 24

約数和(自身を含む): 172173120

約数和(自身を除く): 91212340

約数列:

[1, 2, 4, 5, 10, 20, 79, 158, 316, 395, 790, 1580, 51241, 102482, 204964, 256205, 512410, 1024820, 4048039, 8096078, 16192156, 20240195, 40480390, 80960780]

約数ペア:

[(1, 80960780), (2, 40480390), (4, 20240195), (5, 16192156), (10, 8096078), (20, 4048039), (79, 1024820), (158, 512410), (316, 256205), (395, 204964), (790, 102482), (1580, 51241)]