39578920

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{23011}}^1$

素因数の和:23065

約数の個数: 32

約数和(自身を含む): 91127520

約数和(自身を除く): 51548600

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1720, 23011, 46022, 92044, 115055, 184088, 230110, 460220, 920440, 989473, 1978946, 3957892, 4947365, 7915784, 9894730, 19789460, 39578920]

約数ペア:

[(1, 39578920), (2, 19789460), (4, 9894730), (5, 7915784), (8, 4947365), (10, 3957892), (20, 1978946), (40, 989473), (43, 920440), (86, 460220), (172, 230110), (215, 184088), (344, 115055), (430, 92044), (860, 46022), (1720, 23011)]