28765645

素因数分解:

$5^1\times {\mathrm{47}}^1\times {\mathrm{109}}^1\times {\mathrm{1123}}^1$

素因数の和:1284

約数の個数: 16

約数和(自身を含む): 35608320

約数和(自身を除く): 6842675

約数列:

[1, 5, 47, 109, 235, 545, 1123, 5123, 5615, 25615, 52781, 122407, 263905, 612035, 5753129, 28765645]

約数ペア:

[(1, 28765645), (5, 5753129), (47, 612035), (109, 263905), (235, 122407), (545, 52781), (1123, 25615), (5123, 5615)]