15438160

素因数分解:

$2^4\times 5^1\times {\mathrm{192977}}^1$

素因数の和:192990

約数の個数: 20

約数和(自身を含む): 35893908

約数和(自身を除く): 20455748

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 192977, 385954, 771908, 964885, 1543816, 1929770, 3087632, 3859540, 7719080, 15438160]

約数ペア:

[(1, 15438160), (2, 7719080), (4, 3859540), (5, 3087632), (8, 1929770), (10, 1543816), (16, 964885), (20, 771908), (40, 385954), (80, 192977)]