1280521905

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{6566779}}^1$

素因数の和:6566800

約数の個数: 16

約数和(自身を含む): 2206438080

約数和(自身を除く): 925916175

約数列:

[1, 3, 5, 13, 15, 39, 65, 195, 6566779, 19700337, 32833895, 85368127, 98501685, 256104381, 426840635, 1280521905]

約数ペア:

[(1, 1280521905), (3, 426840635), (5, 256104381), (13, 98501685), (15, 85368127), (39, 32833895), (65, 19700337), (195, 6566779)]