28163775

素因数分解:

$3^1\times 5^2\times {\mathrm{137}}^1\times {\mathrm{2741}}^1$

素因数の和:2891

約数の個数: 24

約数和(自身を含む): 46921104

約数和(自身を除く): 18757329

約数列:

[1, 3, 5, 15, 25, 75, 137, 411, 685, 2055, 2741, 3425, 8223, 10275, 13705, 41115, 68525, 205575, 375517, 1126551, 1877585, 5632755, 9387925, 28163775]

約数ペア:

[(1, 28163775), (3, 9387925), (5, 5632755), (15, 1877585), (25, 1126551), (75, 375517), (137, 205575), (411, 68525), (685, 41115), (2055, 13705), (2741, 10275), (3425, 8223)]