28220605

素因数分解:

$5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{42437}}^1$

素因数の和:42468

約数の個数: 16

約数和(自身を含む): 40740480

約数和(自身を除く): 12519875

約数列:

[1, 5, 7, 19, 35, 95, 133, 665, 42437, 212185, 297059, 806303, 1485295, 4031515, 5644121, 28220605]

約数ペア:

[(1, 28220605), (5, 5644121), (7, 4031515), (19, 1485295), (35, 806303), (95, 297059), (133, 212185), (665, 42437)]