1988590864

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{9560533}}^1$

素因数の和:9560554

約数の個数: 20

約数和(自身を含む): 4149271756

約数和(自身を除く): 2160680892

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 9560533, 19121066, 38242132, 76484264, 124286929, 152968528, 248573858, 497147716, 994295432, 1988590864]

約数ペア:

[(1, 1988590864), (2, 994295432), (4, 497147716), (8, 248573858), (13, 152968528), (16, 124286929), (26, 76484264), (52, 38242132), (104, 19121066), (208, 9560533)]