66500120

素因数分解:

$2^3\times 5^1\times {\mathrm{1662503}}^1$

素因数の和:1662514

約数の個数: 16

約数和(自身を含む): 149625360

約数和(自身を除く): 83125240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1662503, 3325006, 6650012, 8312515, 13300024, 16625030, 33250060, 66500120]

約数ペア:

[(1, 66500120), (2, 33250060), (4, 16625030), (5, 13300024), (8, 8312515), (10, 6650012), (20, 3325006), (40, 1662503)]