249440

素因数分解:

$2^5\times 5^1\times {\mathrm{1559}}^1$

素因数の和:1574

約数の個数: 24

約数和(自身を含む): 589680

約数和(自身を除く): 340240

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 1559, 3118, 6236, 7795, 12472, 15590, 24944, 31180, 49888, 62360, 124720, 249440]

約数ペア:

[(1, 249440), (2, 124720), (4, 62360), (5, 49888), (8, 31180), (10, 24944), (16, 15590), (20, 12472), (32, 7795), (40, 6236), (80, 3118), (160, 1559)]