12740528

素因数分解:

$2^4\times {\mathrm{23}}^1\times {\mathrm{89}}^1\times {\mathrm{389}}^1$

素因数の和:509

約数の個数: 40

約数和(自身を含む): 26114400

約数和(自身を除く): 13373872

約数列:

[1, 2, 4, 8, 16, 23, 46, 89, 92, 178, 184, 356, 368, 389, 712, 778, 1424, 1556, 2047, 3112, 4094, 6224, 8188, 8947, 16376, 17894, 32752, 34621, 35788, 69242, 71576, 138484, 143152, 276968, 553936, 796283, 1592566, 3185132, 6370264, 12740528]

約数ペア:

[(1, 12740528), (2, 6370264), (4, 3185132), (8, 1592566), (16, 796283), (23, 553936), (46, 276968), (89, 143152), (92, 138484), (178, 71576), (184, 69242), (356, 35788), (368, 34621), (389, 32752), (712, 17894), (778, 16376), (1424, 8947), (1556, 8188), (2047, 6224), (3112, 4094)]