4991855

素因数分解:

$5^1\times {\mathrm{11}}^2\times {\mathrm{37}}^1\times {\mathrm{223}}^1$

素因数の和:287

約数の個数: 24

約数和(自身を含む): 6792576

約数和(自身を除く): 1800721

約数列:

[1, 5, 11, 37, 55, 121, 185, 223, 407, 605, 1115, 2035, 2453, 4477, 8251, 12265, 22385, 26983, 41255, 90761, 134915, 453805, 998371, 4991855]

約数ペア:

[(1, 4991855), (5, 998371), (11, 453805), (37, 134915), (55, 90761), (121, 41255), (185, 26983), (223, 22385), (407, 12265), (605, 8251), (1115, 4477), (2035, 2453)]