20526128

素因数分解:

$2^4\times 7^1\times {\mathrm{131}}^1\times {\mathrm{1399}}^1$

素因数の和:1545

約数の個数: 40

約数和(自身を含む): 45830400

約数和(自身を除く): 25304272

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 131, 262, 524, 917, 1048, 1399, 1834, 2096, 2798, 3668, 5596, 7336, 9793, 11192, 14672, 19586, 22384, 39172, 78344, 156688, 183269, 366538, 733076, 1282883, 1466152, 2565766, 2932304, 5131532, 10263064, 20526128]

約数ペア:

[(1, 20526128), (2, 10263064), (4, 5131532), (7, 2932304), (8, 2565766), (14, 1466152), (16, 1282883), (28, 733076), (56, 366538), (112, 183269), (131, 156688), (262, 78344), (524, 39172), (917, 22384), (1048, 19586), (1399, 14672), (1834, 11192), (2096, 9793), (2798, 7336), (3668, 5596)]