22220680

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{12919}}^1$

素因数の和:12973

約数の個数: 32

約数和(自身を含む): 51163200

約数和(自身を除く): 28942520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1720, 12919, 25838, 51676, 64595, 103352, 129190, 258380, 516760, 555517, 1111034, 2222068, 2777585, 4444136, 5555170, 11110340, 22220680]

約数ペア:

[(1, 22220680), (2, 11110340), (4, 5555170), (5, 4444136), (8, 2777585), (10, 2222068), (20, 1111034), (40, 555517), (43, 516760), (86, 258380), (172, 129190), (215, 103352), (344, 64595), (430, 51676), (860, 25838), (1720, 12919)]