28210785

素因数分解:

$3^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{26489}}^1$

素因数の和:26568

約数の個数: 16

約数和(自身を含む): 45774720

約数和(自身を除く): 17563935

約数列:

[1, 3, 5, 15, 71, 213, 355, 1065, 26489, 79467, 132445, 397335, 1880719, 5642157, 9403595, 28210785]

約数ペア:

[(1, 28210785), (3, 9403595), (5, 5642157), (15, 1880719), (71, 397335), (213, 132445), (355, 79467), (1065, 26489)]