17996860

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{128549}}^1$

素因数の和:128565

約数の個数: 24

約数和(自身を含む): 43192800

約数和(自身を除く): 25195940

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 128549, 257098, 514196, 642745, 899843, 1285490, 1799686, 2570980, 3599372, 4499215, 8998430, 17996860]

約数ペア:

[(1, 17996860), (2, 8998430), (4, 4499215), (5, 3599372), (7, 2570980), (10, 1799686), (14, 1285490), (20, 899843), (28, 642745), (35, 514196), (70, 257098), (140, 128549)]