19985152

素因数分解:

$2^8\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{151}}^1$

素因数の和:225

約数の個数: 72

約数和(自身を含む): 44739072

約数和(自身を除く): 24753920

約数列:

[1, 2, 4, 8, 11, 16, 22, 32, 44, 47, 64, 88, 94, 128, 151, 176, 188, 256, 302, 352, 376, 517, 604, 704, 752, 1034, 1208, 1408, 1504, 1661, 2068, 2416, 2816, 3008, 3322, 4136, 4832, 6016, 6644, 7097, 8272, 9664, 12032, 13288, 14194, 16544, 19328, 26576, 28388, 33088, 38656, 53152, 56776, 66176, 78067, 106304, 113552, 132352, 156134, 212608, 227104, 312268, 425216, 454208, 624536, 908416, 1249072, 1816832, 2498144, 4996288, 9992576, 19985152]

約数ペア:

[(1, 19985152), (2, 9992576), (4, 4996288), (8, 2498144), (11, 1816832), (16, 1249072), (22, 908416), (32, 624536), (44, 454208), (47, 425216), (64, 312268), (88, 227104), (94, 212608), (128, 156134), (151, 132352), (176, 113552), (188, 106304), (256, 78067), (302, 66176), (352, 56776), (376, 53152), (517, 38656), (604, 33088), (704, 28388), (752, 26576), (1034, 19328), (1208, 16544), (1408, 14194), (1504, 13288), (1661, 12032), (2068, 9664), (2416, 8272), (2816, 7097), (3008, 6644), (3322, 6016), (4136, 4832)]