28809745

素因数分解:

$5^1\times {\mathrm{89}}^1\times {\mathrm{101}}^1\times {\mathrm{641}}^1$

素因数の和:836

約数の個数: 16

約数和(自身を含む): 35361360

約数和(自身を除く): 6551615

約数列:

[1, 5, 89, 101, 445, 505, 641, 3205, 8989, 44945, 57049, 64741, 285245, 323705, 5761949, 28809745]

約数ペア:

[(1, 28809745), (5, 5761949), (89, 323705), (101, 285245), (445, 64741), (505, 57049), (641, 44945), (3205, 8989)]