30199760

素因数分解:

$2^4\times 5^1\times {\mathrm{43}}^1\times {\mathrm{8779}}^1$

素因数の和:8835

約数の個数: 40

約数和(自身を含む): 71855520

約数和(自身を除く): 41655760

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 43, 80, 86, 172, 215, 344, 430, 688, 860, 1720, 3440, 8779, 17558, 35116, 43895, 70232, 87790, 140464, 175580, 351160, 377497, 702320, 754994, 1509988, 1887485, 3019976, 3774970, 6039952, 7549940, 15099880, 30199760]

約数ペア:

[(1, 30199760), (2, 15099880), (4, 7549940), (5, 6039952), (8, 3774970), (10, 3019976), (16, 1887485), (20, 1509988), (40, 754994), (43, 702320), (80, 377497), (86, 351160), (172, 175580), (215, 140464), (344, 87790), (430, 70232), (688, 43895), (860, 35116), (1720, 17558), (3440, 8779)]