2008256875

素因数分解:

$5^4\times {\mathrm{41}}^1\times {\mathrm{109}}^1\times {\mathrm{719}}^1$

素因数の和:889

約数の個数: 40

約数和(自身を含む): 2597918400

約数和(自身を除く): 589661525

約数列:

[1, 5, 25, 41, 109, 125, 205, 545, 625, 719, 1025, 2725, 3595, 4469, 5125, 13625, 17975, 22345, 25625, 29479, 68125, 78371, 89875, 111725, 147395, 391855, 449375, 558625, 736975, 1959275, 2793125, 3213211, 3684875, 9796375, 16066055, 18424375, 48981875, 80330275, 401651375, 2008256875]

約数ペア:

[(1, 2008256875), (5, 401651375), (25, 80330275), (41, 48981875), (109, 18424375), (125, 16066055), (205, 9796375), (545, 3684875), (625, 3213211), (719, 2793125), (1025, 1959275), (2725, 736975), (3595, 558625), (4469, 449375), (5125, 391855), (13625, 147395), (17975, 111725), (22345, 89875), (25625, 78371), (29479, 68125)]