68784976

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{330697}}^1$

素因数の和:330718

約数の個数: 20

約数和(自身を含む): 143522932

約数和(自身を除く): 74737956

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 330697, 661394, 1322788, 2645576, 4299061, 5291152, 8598122, 17196244, 34392488, 68784976]

約数ペア:

[(1, 68784976), (2, 34392488), (4, 17196244), (8, 8598122), (13, 5291152), (16, 4299061), (26, 2645576), (52, 1322788), (104, 661394), (208, 330697)]