18820419490

素因数分解:

$2^1\times 5^1\times {\mathrm{1559}}^1\times {\mathrm{1207211}}^1$

素因数の和:1208777

約数の個数: 16

約数和(自身を含む): 33898512960

約数和(自身を除く): 15078093470

約数列:

[1, 2, 5, 10, 1559, 3118, 7795, 15590, 1207211, 2414422, 6036055, 12072110, 1882041949, 3764083898, 9410209745, 18820419490]

約数ペア:

[(1, 18820419490), (2, 9410209745), (5, 3764083898), (10, 1882041949), (1559, 12072110), (3118, 6036055), (7795, 2414422), (15590, 1207211)]