20414128

素因数分解:

$2^4\times 7^1\times {\mathrm{113}}^1\times {\mathrm{1613}}^1$

素因数の和:1741

約数の個数: 40

約数和(自身を含む): 45631008

約数和(自身を除く): 25216880

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 113, 226, 452, 791, 904, 1582, 1613, 1808, 3164, 3226, 6328, 6452, 11291, 12656, 12904, 22582, 25808, 45164, 90328, 180656, 182269, 364538, 729076, 1275883, 1458152, 2551766, 2916304, 5103532, 10207064, 20414128]

約数ペア:

[(1, 20414128), (2, 10207064), (4, 5103532), (7, 2916304), (8, 2551766), (14, 1458152), (16, 1275883), (28, 729076), (56, 364538), (112, 182269), (113, 180656), (226, 90328), (452, 45164), (791, 25808), (904, 22582), (1582, 12904), (1613, 12656), (1808, 11291), (3164, 6452), (3226, 6328)]