20350295

素因数分解:

$5^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{89}}^1\times {\mathrm{139}}^1$

素因数の和:287

約数の個数: 32

約数和(自身を含む): 29030400

約数和(自身を除く): 8680105

約数列:

[1, 5, 7, 35, 47, 89, 139, 235, 329, 445, 623, 695, 973, 1645, 3115, 4183, 4865, 6533, 12371, 20915, 29281, 32665, 45731, 61855, 86597, 146405, 228655, 432985, 581437, 2907185, 4070059, 20350295]

約数ペア:

[(1, 20350295), (5, 4070059), (7, 2907185), (35, 581437), (47, 432985), (89, 228655), (139, 146405), (235, 86597), (329, 61855), (445, 45731), (623, 32665), (695, 29281), (973, 20915), (1645, 12371), (3115, 6533), (4183, 4865)]