20353885

素因数分解:

$5^1\times {\mathrm{37}}^1\times {\mathrm{269}}^1\times {\mathrm{409}}^1$

素因数の和:720

約数の個数: 16

約数和(自身を含む): 25239600

約数和(自身を除く): 4885715

約数列:

[1, 5, 37, 185, 269, 409, 1345, 2045, 9953, 15133, 49765, 75665, 110021, 550105, 4070777, 20353885]

約数ペア:

[(1, 20353885), (5, 4070777), (37, 550105), (185, 110021), (269, 75665), (409, 49765), (1345, 15133), (2045, 9953)]