28525905

素因数分解:

$3^3\times 5^1\times {\mathrm{131}}^1\times {\mathrm{1613}}^1$

素因数の和:1758

約数の個数: 32

約数和(自身を含む): 51131520

約数和(自身を除く): 22605615

約数列:

[1, 3, 5, 9, 15, 27, 45, 131, 135, 393, 655, 1179, 1613, 1965, 3537, 4839, 5895, 8065, 14517, 17685, 24195, 43551, 72585, 211303, 217755, 633909, 1056515, 1901727, 3169545, 5705181, 9508635, 28525905]

約数ペア:

[(1, 28525905), (3, 9508635), (5, 5705181), (9, 3169545), (15, 1901727), (27, 1056515), (45, 633909), (131, 217755), (135, 211303), (393, 72585), (655, 43551), (1179, 24195), (1613, 17685), (1965, 14517), (3537, 8065), (4839, 5895)]