131406380

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{938617}}^1$

素因数の和:938633

約数の個数: 24

約数和(自身を含む): 315375648

約数和(自身を除く): 183969268

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 938617, 1877234, 3754468, 4693085, 6570319, 9386170, 13140638, 18772340, 26281276, 32851595, 65703190, 131406380]

約数ペア:

[(1, 131406380), (2, 65703190), (4, 32851595), (5, 26281276), (7, 18772340), (10, 13140638), (14, 9386170), (20, 6570319), (28, 4693085), (35, 3754468), (70, 1877234), (140, 938617)]