30591920

素因数分解:

$2^4\times 5^1\times {\mathrm{43}}^1\times {\mathrm{8893}}^1$

素因数の和:8949

約数の個数: 40

約数和(自身を含む): 72788496

約数和(自身を除く): 42196576

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 43, 80, 86, 172, 215, 344, 430, 688, 860, 1720, 3440, 8893, 17786, 35572, 44465, 71144, 88930, 142288, 177860, 355720, 382399, 711440, 764798, 1529596, 1911995, 3059192, 3823990, 6118384, 7647980, 15295960, 30591920]

約数ペア:

[(1, 30591920), (2, 15295960), (4, 7647980), (5, 6118384), (8, 3823990), (10, 3059192), (16, 1911995), (20, 1529596), (40, 764798), (43, 711440), (80, 382399), (86, 355720), (172, 177860), (215, 142288), (344, 88930), (430, 71144), (688, 44465), (860, 35572), (1720, 17786), (3440, 8893)]