20515945

素因数分解:

$5^1\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{2579}}^1$

素因数の和:2664

約数の個数: 16

約数和(自身を含む): 25882560

約数和(自身を除く): 5366615

約数列:

[1, 5, 37, 43, 185, 215, 1591, 2579, 7955, 12895, 95423, 110897, 477115, 554485, 4103189, 20515945]

約数ペア:

[(1, 20515945), (5, 4103189), (37, 554485), (43, 477115), (185, 110897), (215, 95423), (1591, 12895), (2579, 7955)]