12717560

素因数分解:

$2^3\times 5^1\times {\mathrm{349}}^1\times {\mathrm{911}}^1$

素因数の和:1271

約数の個数: 32

約数和(自身を含む): 28728000

約数和(自身を除く): 16010440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 349, 698, 911, 1396, 1745, 1822, 2792, 3490, 3644, 4555, 6980, 7288, 9110, 13960, 18220, 36440, 317939, 635878, 1271756, 1589695, 2543512, 3179390, 6358780, 12717560]

約数ペア:

[(1, 12717560), (2, 6358780), (4, 3179390), (5, 2543512), (8, 1589695), (10, 1271756), (20, 635878), (40, 317939), (349, 36440), (698, 18220), (911, 13960), (1396, 9110), (1745, 7288), (1822, 6980), (2792, 4555), (3490, 3644)]