20729071805

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{1367}}^1\times {\mathrm{13723}}^1$

素因数の和:15125

約数の個数: 32

約数和(自身を含む): 28386941184

約数和(自身を除く): 7657869379

約数列:

[1, 5, 13, 17, 65, 85, 221, 1105, 1367, 6835, 13723, 17771, 23239, 68615, 88855, 116195, 178399, 233291, 302107, 891995, 1166455, 1510535, 3032783, 15163915, 18759341, 93796705, 243871433, 318908797, 1219357165, 1594543985, 4145814361, 20729071805]

約数ペア:

[(1, 20729071805), (5, 4145814361), (13, 1594543985), (17, 1219357165), (65, 318908797), (85, 243871433), (221, 93796705), (1105, 18759341), (1367, 15163915), (6835, 3032783), (13723, 1510535), (17771, 1166455), (23239, 891995), (68615, 302107), (88855, 233291), (116195, 178399)]