15981880

素因数分解:

$2^3\times 5^1\times {\mathrm{47}}^1\times {\mathrm{8501}}^1$

素因数の和:8559

約数の個数: 32

約数和(自身を含む): 36728640

約数和(自身を除く): 20746760

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 47, 94, 188, 235, 376, 470, 940, 1880, 8501, 17002, 34004, 42505, 68008, 85010, 170020, 340040, 399547, 799094, 1598188, 1997735, 3196376, 3995470, 7990940, 15981880]

約数ペア:

[(1, 15981880), (2, 7990940), (4, 3995470), (5, 3196376), (8, 1997735), (10, 1598188), (20, 799094), (40, 399547), (47, 340040), (94, 170020), (188, 85010), (235, 68008), (376, 42505), (470, 34004), (940, 17002), (1880, 8501)]