1279849905

素因数分解:

$3^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{400579}}^1$

素因数の和:400661

約数の個数: 24

約数和(自身を含む): 2249657280

約数和(自身を除く): 969807375

約数列:

[1, 3, 5, 9, 15, 45, 71, 213, 355, 639, 1065, 3195, 400579, 1201737, 2002895, 3605211, 6008685, 18026055, 28441109, 85323327, 142205545, 255969981, 426616635, 1279849905]

約数ペア:

[(1, 1279849905), (3, 426616635), (5, 255969981), (9, 142205545), (15, 85323327), (45, 28441109), (71, 18026055), (213, 6008685), (355, 3605211), (639, 2002895), (1065, 1201737), (3195, 400579)]