20572705

素因数分解:

$5^1\times {\mathrm{43}}^1\times {\mathrm{103}}^1\times {\mathrm{929}}^1$

素因数の和:1080

約数の個数: 16

約数和(自身を含む): 25534080

約数和(自身を除く): 4961375

約数列:

[1, 5, 43, 103, 215, 515, 929, 4429, 4645, 22145, 39947, 95687, 199735, 478435, 4114541, 20572705]

約数ペア:

[(1, 20572705), (5, 4114541), (43, 478435), (103, 199735), (215, 95687), (515, 39947), (929, 22145), (4429, 4645)]