19804990

素因数分解:

$2^1\times 5^1\times {\mathrm{37}}^1\times {\mathrm{53527}}^1$

素因数の和:53571

約数の個数: 16

約数和(自身を含む): 36613152

約数和(自身を除く): 16808162

約数列:

[1, 2, 5, 10, 37, 74, 185, 370, 53527, 107054, 267635, 535270, 1980499, 3960998, 9902495, 19804990]

約数ペア:

[(1, 19804990), (2, 9902495), (5, 3960998), (10, 1980499), (37, 535270), (74, 267635), (185, 107054), (370, 53527)]