256510856

素因数分解:

$2^3\times 7^1\times {\mathrm{61}}^2\times {\mathrm{1231}}^1$

素因数の和:1366

約数の個数: 48

約数和(自身を含む): 559278720

約数和(自身を除く): 302767864

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 61, 122, 244, 427, 488, 854, 1231, 1708, 2462, 3416, 3721, 4924, 7442, 8617, 9848, 14884, 17234, 26047, 29768, 34468, 52094, 68936, 75091, 104188, 150182, 208376, 300364, 525637, 600728, 1051274, 2102548, 4205096, 4580551, 9161102, 18322204, 32063857, 36644408, 64127714, 128255428, 256510856]

約数ペア:

[(1, 256510856), (2, 128255428), (4, 64127714), (7, 36644408), (8, 32063857), (14, 18322204), (28, 9161102), (56, 4580551), (61, 4205096), (122, 2102548), (244, 1051274), (427, 600728), (488, 525637), (854, 300364), (1231, 208376), (1708, 150182), (2462, 104188), (3416, 75091), (3721, 68936), (4924, 52094), (7442, 34468), (8617, 29768), (9848, 26047), (14884, 17234)]