205454315

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{421}}^1\times {\mathrm{467}}^1$

素因数の和:923

約数の個数: 32

約数和(自身を含む): 284394240

約数和(自身を除く): 78939925

約数列:

[1, 5, 11, 19, 55, 95, 209, 421, 467, 1045, 2105, 2335, 4631, 5137, 7999, 8873, 23155, 25685, 39995, 44365, 87989, 97603, 196607, 439945, 488015, 983035, 2162677, 3735533, 10813385, 18677665, 41090863, 205454315]

約数ペア:

[(1, 205454315), (5, 41090863), (11, 18677665), (19, 10813385), (55, 3735533), (95, 2162677), (209, 983035), (421, 488015), (467, 439945), (1045, 196607), (2105, 97603), (2335, 87989), (4631, 44365), (5137, 39995), (7999, 25685), (8873, 23155)]