205381631

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{73}}^1\times {\mathrm{719}}^1$

素因数の和:855

約数の個数: 32

約数和(自身を含む): 262563840

約数和(自身を除く): 57182209

約数列:

[1, 7, 13, 43, 73, 91, 301, 511, 559, 719, 949, 3139, 3913, 5033, 6643, 9347, 21973, 30917, 40807, 52487, 65429, 216419, 285649, 367409, 401921, 682331, 2256941, 2813447, 4776317, 15798587, 29340233, 205381631]

約数ペア:

[(1, 205381631), (7, 29340233), (13, 15798587), (43, 4776317), (73, 2813447), (91, 2256941), (301, 682331), (511, 401921), (559, 367409), (719, 285649), (949, 216419), (3139, 65429), (3913, 52487), (5033, 40807), (6643, 30917), (9347, 21973)]