20576656

素因数分解:

$2^4\times {\mathrm{73}}^1\times {\mathrm{79}}^1\times {\mathrm{223}}^1$

素因数の和:383

約数の個数: 40

約数和(自身を含む): 41108480

約数和(自身を除く): 20531824

約数列:

[1, 2, 4, 8, 16, 73, 79, 146, 158, 223, 292, 316, 446, 584, 632, 892, 1168, 1264, 1784, 3568, 5767, 11534, 16279, 17617, 23068, 32558, 35234, 46136, 65116, 70468, 92272, 130232, 140936, 260464, 281872, 1286041, 2572082, 5144164, 10288328, 20576656]

約数ペア:

[(1, 20576656), (2, 10288328), (4, 5144164), (8, 2572082), (16, 1286041), (73, 281872), (79, 260464), (146, 140936), (158, 130232), (223, 92272), (292, 70468), (316, 65116), (446, 46136), (584, 35234), (632, 32558), (892, 23068), (1168, 17617), (1264, 16279), (1784, 11534), (3568, 5767)]