78890140

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{563501}}^1$

素因数の和:563517

約数の個数: 24

約数和(自身を含む): 189336672

約数和(自身を除く): 110446532

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 563501, 1127002, 2254004, 2817505, 3944507, 5635010, 7889014, 11270020, 15778028, 19722535, 39445070, 78890140]

約数ペア:

[(1, 78890140), (2, 39445070), (4, 19722535), (5, 15778028), (7, 11270020), (10, 7889014), (14, 5635010), (20, 3944507), (28, 2817505), (35, 2254004), (70, 1127002), (140, 563501)]