438045136

素因数分解:

$2^4\times {\mathrm{131}}^1\times {\mathrm{208991}}^1$

素因数の和:209130

約数の個数: 20

約数和(自身を含む): 855195264

約数和(自身を除く): 417150128

約数列:

[1, 2, 4, 8, 16, 131, 262, 524, 1048, 2096, 208991, 417982, 835964, 1671928, 3343856, 27377821, 54755642, 109511284, 219022568, 438045136]

約数ペア:

[(1, 438045136), (2, 219022568), (4, 109511284), (8, 54755642), (16, 27377821), (131, 3343856), (262, 1671928), (524, 835964), (1048, 417982), (2096, 208991)]