164739025

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{769}}^1$

素因数の和:850

約数の個数: 48

約数和(自身を含む): 240609600

約数和(自身を除く): 75870575

約数列:

[1, 5, 11, 19, 25, 41, 55, 95, 205, 209, 275, 451, 475, 769, 779, 1025, 1045, 2255, 3845, 3895, 5225, 8459, 8569, 11275, 14611, 19225, 19475, 31529, 42295, 42845, 73055, 157645, 160721, 211475, 214225, 346819, 365275, 599051, 788225, 803605, 1734095, 2995255, 4018025, 6589561, 8670475, 14976275, 32947805, 164739025]

約数ペア:

[(1, 164739025), (5, 32947805), (11, 14976275), (19, 8670475), (25, 6589561), (41, 4018025), (55, 2995255), (95, 1734095), (205, 803605), (209, 788225), (275, 599051), (451, 365275), (475, 346819), (769, 214225), (779, 211475), (1025, 160721), (1045, 157645), (2255, 73055), (3845, 42845), (3895, 42295), (5225, 31529), (8459, 19475), (8569, 19225), (11275, 14611)]