128549000

素因数分解:

$2^3\times 5^3\times {\mathrm{128549}}^1$

素因数の和:128570

約数の個数: 32

約数和(自身を含む): 300807000

約数和(自身を除く): 172258000

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 125, 200, 250, 500, 1000, 128549, 257098, 514196, 642745, 1028392, 1285490, 2570980, 3213725, 5141960, 6427450, 12854900, 16068625, 25709800, 32137250, 64274500, 128549000]

約数ペア:

[(1, 128549000), (2, 64274500), (4, 32137250), (5, 25709800), (8, 16068625), (10, 12854900), (20, 6427450), (25, 5141960), (40, 3213725), (50, 2570980), (100, 1285490), (125, 1028392), (200, 642745), (250, 514196), (500, 257098), (1000, 128549)]