28714515

素因数分解:

$3^1\times 5^1\times {\mathrm{89}}^1\times {\mathrm{137}}^1\times {\mathrm{157}}^1$

素因数の和:391

約数の個数: 32

約数和(自身を含む): 47096640

約数和(自身を除く): 18382125

約数列:

[1, 3, 5, 15, 89, 137, 157, 267, 411, 445, 471, 685, 785, 1335, 2055, 2355, 12193, 13973, 21509, 36579, 41919, 60965, 64527, 69865, 107545, 182895, 209595, 322635, 1914301, 5742903, 9571505, 28714515]

約数ペア:

[(1, 28714515), (3, 9571505), (5, 5742903), (15, 1914301), (89, 322635), (137, 209595), (157, 182895), (267, 107545), (411, 69865), (445, 64527), (471, 60965), (685, 41919), (785, 36579), (1335, 21509), (2055, 13973), (2355, 12193)]