7844920

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{4561}}^1$

素因数の和:4615

約数の個数: 32

約数和(自身を含む): 18065520

約数和(自身を除く): 10220600

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1720, 4561, 9122, 18244, 22805, 36488, 45610, 91220, 182440, 196123, 392246, 784492, 980615, 1568984, 1961230, 3922460, 7844920]

約数ペア:

[(1, 7844920), (2, 3922460), (4, 1961230), (5, 1568984), (8, 980615), (10, 784492), (20, 392246), (40, 196123), (43, 182440), (86, 91220), (172, 45610), (215, 36488), (344, 22805), (430, 18244), (860, 9122), (1720, 4561)]