28645825

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{4639}}^1$

素因数の和:4681

約数の個数: 24

約数和(自身を含む): 40275200

約数和(自身を除く): 11629375

約数列:

[1, 5, 13, 19, 25, 65, 95, 247, 325, 475, 1235, 4639, 6175, 23195, 60307, 88141, 115975, 301535, 440705, 1145833, 1507675, 2203525, 5729165, 28645825]

約数ペア:

[(1, 28645825), (5, 5729165), (13, 2203525), (19, 1507675), (25, 1145833), (65, 440705), (95, 301535), (247, 115975), (325, 88141), (475, 60307), (1235, 23195), (4639, 6175)]