81071284

素因数分解:

$2^2\times 7^2\times {\mathrm{413629}}^1$

素因数の和:413647

約数の個数: 18

約数和(自身を含む): 165038370

約数和(自身を除く): 83967086

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 196, 413629, 827258, 1654516, 2895403, 5790806, 11581612, 20267821, 40535642, 81071284]

約数ペア:

[(1, 81071284), (2, 40535642), (4, 20267821), (7, 11581612), (14, 5790806), (28, 2895403), (49, 1654516), (98, 827258), (196, 413629)]