81162775

素因数分解:

$5^2\times {\mathrm{19}}^1\times {\mathrm{241}}^1\times {\mathrm{709}}^1$

素因数の和:979

約数の個数: 24

約数和(自身を含む): 106528400

約数和(自身を除く): 25365625

約数列:

[1, 5, 19, 25, 95, 241, 475, 709, 1205, 3545, 4579, 6025, 13471, 17725, 22895, 67355, 114475, 170869, 336775, 854345, 3246511, 4271725, 16232555, 81162775]

約数ペア:

[(1, 81162775), (5, 16232555), (19, 4271725), (25, 3246511), (95, 854345), (241, 336775), (475, 170869), (709, 114475), (1205, 67355), (3545, 22895), (4579, 17725), (6025, 13471)]