28178925

素因数分解:

$3^1\times 5^2\times {\mathrm{241}}^1\times {\mathrm{1559}}^1$

素因数の和:1813

約数の個数: 24

約数和(自身を含む): 46812480

約数和(自身を除く): 18633555

約数列:

[1, 3, 5, 15, 25, 75, 241, 723, 1205, 1559, 3615, 4677, 6025, 7795, 18075, 23385, 38975, 116925, 375719, 1127157, 1878595, 5635785, 9392975, 28178925]

約数ペア:

[(1, 28178925), (3, 9392975), (5, 5635785), (15, 1878595), (25, 1127157), (75, 375719), (241, 116925), (723, 38975), (1205, 23385), (1559, 18075), (3615, 7795), (4677, 6025)]