28339725

素因数分解:

$3^1\times 5^2\times {\mathrm{379}}^1\times {\mathrm{997}}^1$

素因数の和:1389

約数の個数: 24

約数和(自身を含む): 47025760

約数和(自身を除く): 18686035

約数列:

[1, 3, 5, 15, 25, 75, 379, 997, 1137, 1895, 2991, 4985, 5685, 9475, 14955, 24925, 28425, 74775, 377863, 1133589, 1889315, 5667945, 9446575, 28339725]

約数ペア:

[(1, 28339725), (3, 9446575), (5, 5667945), (15, 1889315), (25, 1133589), (75, 377863), (379, 74775), (997, 28425), (1137, 24925), (1895, 14955), (2991, 9475), (4985, 5685)]