78566120

素因数分解:

$2^3\times 5^1\times {\mathrm{97}}^1\times {\mathrm{20249}}^1$

素因数の和:20357

約数の個数: 32

約数和(自身を含む): 178605000

約数和(自身を除く): 100038880

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 97, 194, 388, 485, 776, 970, 1940, 3880, 20249, 40498, 80996, 101245, 161992, 202490, 404980, 809960, 1964153, 3928306, 7856612, 9820765, 15713224, 19641530, 39283060, 78566120]

約数ペア:

[(1, 78566120), (2, 39283060), (4, 19641530), (5, 15713224), (8, 9820765), (10, 7856612), (20, 3928306), (40, 1964153), (97, 809960), (194, 404980), (388, 202490), (485, 161992), (776, 101245), (970, 80996), (1940, 40498), (3880, 20249)]