157171705

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{83}}^1\times {\mathrm{643}}^1$

素因数の和:781

約数の個数: 32

約数和(自身を含む): 207728640

約数和(自身を除く): 50556935

約数列:

[1, 5, 19, 31, 83, 95, 155, 415, 589, 643, 1577, 2573, 2945, 3215, 7885, 12217, 12865, 19933, 48887, 53369, 61085, 99665, 244435, 266845, 378727, 1014011, 1654439, 1893635, 5070055, 8272195, 31434341, 157171705]

約数ペア:

[(1, 157171705), (5, 31434341), (19, 8272195), (31, 5070055), (83, 1893635), (95, 1654439), (155, 1014011), (415, 378727), (589, 266845), (643, 244435), (1577, 99665), (2573, 61085), (2945, 53369), (3215, 48887), (7885, 19933), (12217, 12865)]