28993525

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{179}}^1$

素因数の和:250

約数の個数: 48

約数和(自身を含む): 42854400

約数和(自身を除く): 13860875

約数列:

[1, 5, 11, 19, 25, 31, 55, 95, 155, 179, 209, 275, 341, 475, 589, 775, 895, 1045, 1705, 1969, 2945, 3401, 4475, 5225, 5549, 6479, 8525, 9845, 14725, 17005, 27745, 32395, 37411, 49225, 61039, 85025, 105431, 138725, 161975, 187055, 305195, 527155, 935275, 1159741, 1525975, 2635775, 5798705, 28993525]

約数ペア:

[(1, 28993525), (5, 5798705), (11, 2635775), (19, 1525975), (25, 1159741), (31, 935275), (55, 527155), (95, 305195), (155, 187055), (179, 161975), (209, 138725), (275, 105431), (341, 85025), (475, 61039), (589, 49225), (775, 37411), (895, 32395), (1045, 27745), (1705, 17005), (1969, 14725), (2945, 9845), (3401, 8525), (4475, 6479), (5225, 5549)]