20004605

素因数分解:

$5^1\times {\mathrm{37}}^1\times {\mathrm{71}}^1\times {\mathrm{1523}}^1$

素因数の和:1636

約数の個数: 16

約数和(自身を含む): 25017984

約数和(自身を除く): 5013379

約数列:

[1, 5, 37, 71, 185, 355, 1523, 2627, 7615, 13135, 56351, 108133, 281755, 540665, 4000921, 20004605]

約数ペア:

[(1, 20004605), (5, 4000921), (37, 540665), (71, 281755), (185, 108133), (355, 56351), (1523, 13135), (2627, 7615)]