2008385285

素因数分解:

$5^1\times {\mathrm{29}}^1\times {\mathrm{139}}^1\times {\mathrm{251}}^1\times {\mathrm{397}}^1$

素因数の和:821

約数の個数: 32

約数和(自身を含む): 2527459200

約数和(自身を除く): 519073915

約数列:

[1, 5, 29, 139, 145, 251, 397, 695, 1255, 1985, 4031, 7279, 11513, 20155, 34889, 36395, 55183, 57565, 99647, 174445, 275915, 498235, 1011781, 1600307, 2889763, 5058905, 8001535, 13850933, 14448815, 69254665, 401677057, 2008385285]

約数ペア:

[(1, 2008385285), (5, 401677057), (29, 69254665), (139, 14448815), (145, 13850933), (251, 8001535), (397, 5058905), (695, 2889763), (1255, 1600307), (1985, 1011781), (4031, 498235), (7279, 275915), (11513, 174445), (20155, 99647), (34889, 57565), (36395, 55183)]