261658964

素因数分解:

$2^2\times 7^1\times {\mathrm{47}}^1\times {\mathrm{198829}}^1$

素因数の和:198887

約数の個数: 24

約数和(自身を含む): 534455040

約数和(自身を除く): 272796076

約数列:

[1, 2, 4, 7, 14, 28, 47, 94, 188, 329, 658, 1316, 198829, 397658, 795316, 1391803, 2783606, 5567212, 9344963, 18689926, 37379852, 65414741, 130829482, 261658964]

約数ペア:

[(1, 261658964), (2, 130829482), (4, 65414741), (7, 37379852), (14, 18689926), (28, 9344963), (47, 5567212), (94, 2783606), (188, 1391803), (329, 795316), (658, 397658), (1316, 198829)]