15787580

素因数分解:

$2^2\times 5^1\times {\mathrm{197}}^1\times {\mathrm{4007}}^1$

素因数の和:4213

約数の個数: 24

約数和(自身を含む): 33330528

約数和(自身を除く): 17542948

約数列:

[1, 2, 4, 5, 10, 20, 197, 394, 788, 985, 1970, 3940, 4007, 8014, 16028, 20035, 40070, 80140, 789379, 1578758, 3157516, 3946895, 7893790, 15787580]

約数ペア:

[(1, 15787580), (2, 7893790), (4, 3946895), (5, 3157516), (10, 1578758), (20, 789379), (197, 80140), (394, 40070), (788, 20035), (985, 16028), (1970, 8014), (3940, 4007)]