28042385

素因数分解:

$5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{42169}}^1$

素因数の和:42200

約数の個数: 16

約数和(自身を含む): 40483200

約数和(自身を除く): 12440815

約数列:

[1, 5, 7, 19, 35, 95, 133, 665, 42169, 210845, 295183, 801211, 1475915, 4006055, 5608477, 28042385]

約数ペア:

[(1, 28042385), (5, 5608477), (7, 4006055), (19, 1475915), (35, 801211), (95, 295183), (133, 210845), (665, 42169)]