28080550

素因数分解:

$2^1\times 5^2\times {\mathrm{79}}^1\times {\mathrm{7109}}^1$

素因数の和:7200

約数の個数: 24

約数和(自身を含む): 52898400

約数和(自身を除く): 24817850

約数列:

[1, 2, 5, 10, 25, 50, 79, 158, 395, 790, 1975, 3950, 7109, 14218, 35545, 71090, 177725, 355450, 561611, 1123222, 2808055, 5616110, 14040275, 28080550]

約数ペア:

[(1, 28080550), (2, 14040275), (5, 5616110), (10, 2808055), (25, 1123222), (50, 561611), (79, 355450), (158, 177725), (395, 71090), (790, 35545), (1975, 14218), (3950, 7109)]