20054576

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{1609}}^1$

素因数の和:1677

約数の個数: 40

約数和(自身を含む): 41924400

約数和(自身を除く): 21869824

約数列:

[1, 2, 4, 8, 16, 19, 38, 41, 76, 82, 152, 164, 304, 328, 656, 779, 1558, 1609, 3116, 3218, 6232, 6436, 12464, 12872, 25744, 30571, 61142, 65969, 122284, 131938, 244568, 263876, 489136, 527752, 1055504, 1253411, 2506822, 5013644, 10027288, 20054576]

約数ペア:

[(1, 20054576), (2, 10027288), (4, 5013644), (8, 2506822), (16, 1253411), (19, 1055504), (38, 527752), (41, 489136), (76, 263876), (82, 244568), (152, 131938), (164, 122284), (304, 65969), (328, 61142), (656, 30571), (779, 25744), (1558, 12872), (1609, 12464), (3116, 6436), (3218, 6232)]