655778896

素因数分解:

$2^4\times {\mathrm{43}}^1\times {\mathrm{641}}^1\times {\mathrm{1487}}^1$

素因数の和:2179

約数の個数: 40

約数和(自身を含む): 1303023744

約数和(自身を除く): 647244848

約数列:

[1, 2, 4, 8, 16, 43, 86, 172, 344, 641, 688, 1282, 1487, 2564, 2974, 5128, 5948, 10256, 11896, 23792, 27563, 55126, 63941, 110252, 127882, 220504, 255764, 441008, 511528, 953167, 1023056, 1906334, 3812668, 7625336, 15250672, 40986181, 81972362, 163944724, 327889448, 655778896]

約数ペア:

[(1, 655778896), (2, 327889448), (4, 163944724), (8, 81972362), (16, 40986181), (43, 15250672), (86, 7625336), (172, 3812668), (344, 1906334), (641, 1023056), (688, 953167), (1282, 511528), (1487, 441008), (2564, 255764), (2974, 220504), (5128, 127882), (5948, 110252), (10256, 63941), (11896, 55126), (23792, 27563)]