208609865

素因数分解:

$5^1\times {\mathrm{113}}^1\times {\mathrm{251}}^1\times {\mathrm{1471}}^1$

素因数の和:1840

約数の個数: 16

約数和(自身を含む): 253725696

約数和(自身を除く): 45115831

約数列:

[1, 5, 113, 251, 565, 1255, 1471, 7355, 28363, 141815, 166223, 369221, 831115, 1846105, 41721973, 208609865]

約数ペア:

[(1, 208609865), (5, 41721973), (113, 1846105), (251, 831115), (565, 369221), (1255, 166223), (1471, 141815), (7355, 28363)]