18498280

素因数分解:

$2^3\times 5^1\times {\mathrm{311}}^1\times {\mathrm{1487}}^1$

素因数の和:1809

約数の個数: 32

約数和(自身を含む): 41783040

約数和(自身を除く): 23284760

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 311, 622, 1244, 1487, 1555, 2488, 2974, 3110, 5948, 6220, 7435, 11896, 12440, 14870, 29740, 59480, 462457, 924914, 1849828, 2312285, 3699656, 4624570, 9249140, 18498280]

約数ペア:

[(1, 18498280), (2, 9249140), (4, 4624570), (5, 3699656), (8, 2312285), (10, 1849828), (20, 924914), (40, 462457), (311, 59480), (622, 29740), (1244, 14870), (1487, 12440), (1555, 11896), (2488, 7435), (2974, 6220), (3110, 5948)]