91218220

素因数分解:

$2^2\times 5^1\times {\mathrm{281}}^1\times {\mathrm{16231}}^1$

素因数の和:16521

約数の個数: 24

約数和(自身を含む): 192251808

約数和(自身を除く): 101033588

約数列:

[1, 2, 4, 5, 10, 20, 281, 562, 1124, 1405, 2810, 5620, 16231, 32462, 64924, 81155, 162310, 324620, 4560911, 9121822, 18243644, 22804555, 45609110, 91218220]

約数ペア:

[(1, 91218220), (2, 45609110), (4, 22804555), (5, 18243644), (10, 9121822), (20, 4560911), (281, 324620), (562, 162310), (1124, 81155), (1405, 64924), (2810, 32462), (5620, 16231)]