20580736

素因数分解:

$2^7\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{311}}^1$

素因数の和:383

約数の個数: 64

約数和(自身を含む): 45826560

約数和(自身を除く): 25245824

約数列:

[1, 2, 4, 8, 11, 16, 22, 32, 44, 47, 64, 88, 94, 128, 176, 188, 311, 352, 376, 517, 622, 704, 752, 1034, 1244, 1408, 1504, 2068, 2488, 3008, 3421, 4136, 4976, 6016, 6842, 8272, 9952, 13684, 14617, 16544, 19904, 27368, 29234, 33088, 39808, 54736, 58468, 66176, 109472, 116936, 160787, 218944, 233872, 321574, 437888, 467744, 643148, 935488, 1286296, 1870976, 2572592, 5145184, 10290368, 20580736]

約数ペア:

[(1, 20580736), (2, 10290368), (4, 5145184), (8, 2572592), (11, 1870976), (16, 1286296), (22, 935488), (32, 643148), (44, 467744), (47, 437888), (64, 321574), (88, 233872), (94, 218944), (128, 160787), (176, 116936), (188, 109472), (311, 66176), (352, 58468), (376, 54736), (517, 39808), (622, 33088), (704, 29234), (752, 27368), (1034, 19904), (1244, 16544), (1408, 14617), (1504, 13684), (2068, 9952), (2488, 8272), (3008, 6842), (3421, 6016), (4136, 4976)]