12948128

素因数分解:

$2^5\times {\mathrm{41}}^1\times {\mathrm{71}}^1\times {\mathrm{139}}^1$

素因数の和:261

約数の個数: 48

約数和(自身を含む): 26671680

約数和(自身を除く): 13723552

約数列:

[1, 2, 4, 8, 16, 32, 41, 71, 82, 139, 142, 164, 278, 284, 328, 556, 568, 656, 1112, 1136, 1312, 2224, 2272, 2911, 4448, 5699, 5822, 9869, 11398, 11644, 19738, 22796, 23288, 39476, 45592, 46576, 78952, 91184, 93152, 157904, 182368, 315808, 404629, 809258, 1618516, 3237032, 6474064, 12948128]

約数ペア:

[(1, 12948128), (2, 6474064), (4, 3237032), (8, 1618516), (16, 809258), (32, 404629), (41, 315808), (71, 182368), (82, 157904), (139, 93152), (142, 91184), (164, 78952), (278, 46576), (284, 45592), (328, 39476), (556, 23288), (568, 22796), (656, 19738), (1112, 11644), (1136, 11398), (1312, 9869), (2224, 5822), (2272, 5699), (2911, 4448)]