28689225

素因数分解:

$3^1\times 5^2\times {\mathrm{179}}^1\times {\mathrm{2137}}^1$

素因数の和:2329

約数の個数: 24

約数和(自身を含む): 47720160

約数和(自身を除く): 19030935

約数列:

[1, 3, 5, 15, 25, 75, 179, 537, 895, 2137, 2685, 4475, 6411, 10685, 13425, 32055, 53425, 160275, 382523, 1147569, 1912615, 5737845, 9563075, 28689225]

約数ペア:

[(1, 28689225), (3, 9563075), (5, 5737845), (15, 1912615), (25, 1147569), (75, 382523), (179, 160275), (537, 53425), (895, 32055), (2137, 13425), (2685, 10685), (4475, 6411)]