804528020

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{2117179}}^1$

素因数の和:2117207

約数の個数: 24

約数和(自身を含む): 1778431200

約数和(自身を除く): 973903180

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 2117179, 4234358, 8468716, 10585895, 21171790, 40226401, 42343580, 80452802, 160905604, 201132005, 402264010, 804528020]

約数ペア:

[(1, 804528020), (2, 402264010), (4, 201132005), (5, 160905604), (10, 80452802), (19, 42343580), (20, 40226401), (38, 21171790), (76, 10585895), (95, 8468716), (190, 4234358), (380, 2117179)]