178080140

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{1272001}}^1$

素因数の和:1272017

約数の個数: 24

約数和(自身を含む): 427392672

約数和(自身を除く): 249312532

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 1272001, 2544002, 5088004, 6360005, 8904007, 12720010, 17808014, 25440020, 35616028, 44520035, 89040070, 178080140]

約数ペア:

[(1, 178080140), (2, 89040070), (4, 44520035), (5, 35616028), (7, 25440020), (10, 17808014), (14, 12720010), (20, 8904007), (28, 6360005), (35, 5088004), (70, 2544002), (140, 1272001)]