20502776

素因数分解:

$2^3\times 7^2\times {\mathrm{193}}^1\times {\mathrm{271}}^1$

素因数の和:484

約数の個数: 48

約数和(自身を含む): 45116640

約数和(自身を除く): 24613864

約数列:

[1, 2, 4, 7, 8, 14, 28, 49, 56, 98, 193, 196, 271, 386, 392, 542, 772, 1084, 1351, 1544, 1897, 2168, 2702, 3794, 5404, 7588, 9457, 10808, 13279, 15176, 18914, 26558, 37828, 52303, 53116, 75656, 104606, 106232, 209212, 366121, 418424, 732242, 1464484, 2562847, 2928968, 5125694, 10251388, 20502776]

約数ペア:

[(1, 20502776), (2, 10251388), (4, 5125694), (7, 2928968), (8, 2562847), (14, 1464484), (28, 732242), (49, 418424), (56, 366121), (98, 209212), (193, 106232), (196, 104606), (271, 75656), (386, 53116), (392, 52303), (542, 37828), (772, 26558), (1084, 18914), (1351, 15176), (1544, 13279), (1897, 10808), (2168, 9457), (2702, 7588), (3794, 5404)]