20344478

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{409}}^1$

素因数の和:465

約数の個数: 64

約数和(自身を含む): 42508800

約数和(自身を除く): 22164322

約数列:

[1, 2, 7, 11, 14, 17, 19, 22, 34, 38, 77, 119, 133, 154, 187, 209, 238, 266, 323, 374, 409, 418, 646, 818, 1309, 1463, 2261, 2618, 2863, 2926, 3553, 4499, 4522, 5726, 6953, 7106, 7771, 8998, 13906, 15542, 24871, 31493, 48671, 49742, 54397, 62986, 76483, 85481, 97342, 108794, 132107, 152966, 170962, 264214, 535381, 598367, 924749, 1070762, 1196734, 1453177, 1849498, 2906354, 10172239, 20344478]

約数ペア:

[(1, 20344478), (2, 10172239), (7, 2906354), (11, 1849498), (14, 1453177), (17, 1196734), (19, 1070762), (22, 924749), (34, 598367), (38, 535381), (77, 264214), (119, 170962), (133, 152966), (154, 132107), (187, 108794), (209, 97342), (238, 85481), (266, 76483), (323, 62986), (374, 54397), (409, 49742), (418, 48671), (646, 31493), (818, 24871), (1309, 15542), (1463, 13906), (2261, 8998), (2618, 7771), (2863, 7106), (2926, 6953), (3553, 5726), (4499, 4522)]