66728912

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{219503}}^1$

素因数の和:219530

約数の個数: 20

約数和(自身を含む): 136092480

約数和(自身を除く): 69363568

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 304, 219503, 439006, 878012, 1756024, 3512048, 4170557, 8341114, 16682228, 33364456, 66728912]

約数ペア:

[(1, 66728912), (2, 33364456), (4, 16682228), (8, 8341114), (16, 4170557), (19, 3512048), (38, 1756024), (76, 878012), (152, 439006), (304, 219503)]