156988248020

素因数分解:

$2^2\times 5^1\times {\mathrm{197}}^1\times {\mathrm{39844733}}^1$

素因数の和:39844939

約数の個数: 24

約数和(自身を含む): 331348807944

約数和(自身を除く): 174360559924

約数列:

[1, 2, 4, 5, 10, 20, 197, 394, 788, 985, 1970, 3940, 39844733, 79689466, 159378932, 199223665, 398447330, 796894660, 7849412401, 15698824802, 31397649604, 39247062005, 78494124010, 156988248020]

約数ペア:

[(1, 156988248020), (2, 78494124010), (4, 39247062005), (5, 31397649604), (10, 15698824802), (20, 7849412401), (197, 796894660), (394, 398447330), (788, 199223665), (985, 159378932), (1970, 79689466), (3940, 39844733)]