51242140

素因数分解:

$2^2\times 5^1\times {\mathrm{487}}^1\times {\mathrm{5261}}^1$

素因数の和:5757

約数の個数: 24

約数和(自身を含む): 107849952

約数和(自身を除く): 56607812

約数列:

[1, 2, 4, 5, 10, 20, 487, 974, 1948, 2435, 4870, 5261, 9740, 10522, 21044, 26305, 52610, 105220, 2562107, 5124214, 10248428, 12810535, 25621070, 51242140]

約数ペア:

[(1, 51242140), (2, 25621070), (4, 12810535), (5, 10248428), (10, 5124214), (20, 2562107), (487, 105220), (974, 52610), (1948, 26305), (2435, 21044), (4870, 10522), (5261, 9740)]