15503920

素因数分解:

$2^4\times 5^1\times {\mathrm{193799}}^1$

素因数の和:193812

約数の個数: 20

約数和(自身を含む): 36046800

約数和(自身を除く): 20542880

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 193799, 387598, 775196, 968995, 1550392, 1937990, 3100784, 3875980, 7751960, 15503920]

約数ペア:

[(1, 15503920), (2, 7751960), (4, 3875980), (5, 3100784), (8, 1937990), (10, 1550392), (16, 968995), (20, 775196), (40, 387598), (80, 193799)]