28028.000000

素因数分解:

$3^1\times 5^2\times {\mathrm{61}}^1\times {\mathrm{137}}^1$

素因数の和:211

約数の個数: 24

約数和(自身を含む): 1060944

約数和(自身を除く): 434169

約数列:

[1, 3, 5, 15, 25, 61, 75, 137, 183, 305, 411, 685, 915, 1525, 2055, 3425, 4575, 8357, 10275, 25071, 41785, 125355, 208925, 626775]

約数ペア:

[(1, 626775), (3, 208925), (5, 125355), (15, 41785), (25, 25071), (61, 10275), (75, 8357), (137, 4575), (183, 3425), (305, 2055), (411, 1525), (685, 915)]