144780520

素因数分解:

$2^3\times 5^1\times {\mathrm{223}}^1\times {\mathrm{16231}}^1$

素因数の和:16465

約数の個数: 32

約数和(自身を含む): 327237120

約数和(自身を除く): 182456600

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 223, 446, 892, 1115, 1784, 2230, 4460, 8920, 16231, 32462, 64924, 81155, 129848, 162310, 324620, 649240, 3619513, 7239026, 14478052, 18097565, 28956104, 36195130, 72390260, 144780520]

約数ペア:

[(1, 144780520), (2, 72390260), (4, 36195130), (5, 28956104), (8, 18097565), (10, 14478052), (20, 7239026), (40, 3619513), (223, 649240), (446, 324620), (892, 162310), (1115, 129848), (1784, 81155), (2230, 64924), (4460, 32462), (8920, 16231)]