20090785

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{28099}}^1$

素因数の和:28128

約数の個数: 16

約数和(自身を含む): 28324800

約数和(自身を除く): 8234015

約数列:

[1, 5, 11, 13, 55, 65, 143, 715, 28099, 140495, 309089, 365287, 1545445, 1826435, 4018157, 20090785]

約数ペア:

[(1, 20090785), (5, 4018157), (11, 1826435), (13, 1545445), (55, 365287), (65, 309089), (143, 140495), (715, 28099)]