81312656

素因数分解:

$2^4\times {\mathrm{43}}^1\times {\mathrm{73}}^1\times {\mathrm{1619}}^1$

素因数の和:1743

約数の個数: 40

約数和(自身を含む): 163516320

約数和(自身を除く): 82203664

約数列:

[1, 2, 4, 8, 16, 43, 73, 86, 146, 172, 292, 344, 584, 688, 1168, 1619, 3139, 3238, 6278, 6476, 12556, 12952, 25112, 25904, 50224, 69617, 118187, 139234, 236374, 278468, 472748, 556936, 945496, 1113872, 1890992, 5082041, 10164082, 20328164, 40656328, 81312656]

約数ペア:

[(1, 81312656), (2, 40656328), (4, 20328164), (8, 10164082), (16, 5082041), (43, 1890992), (73, 1113872), (86, 945496), (146, 556936), (172, 472748), (292, 278468), (344, 236374), (584, 139234), (688, 118187), (1168, 69617), (1619, 50224), (3139, 25904), (3238, 25112), (6278, 12952), (6476, 12556)]