1287989888

素因数分解:

$2^7\times {\mathrm{53}}^1\times {\mathrm{373}}^1\times {\mathrm{509}}^1$

素因数の和:949

約数の個数: 64

約数和(自身を含む): 2626489800

約数和(自身を除く): 1338499912

約数列:

[1, 2, 4, 8, 16, 32, 53, 64, 106, 128, 212, 373, 424, 509, 746, 848, 1018, 1492, 1696, 2036, 2984, 3392, 4072, 5968, 6784, 8144, 11936, 16288, 19769, 23872, 26977, 32576, 39538, 47744, 53954, 65152, 79076, 107908, 158152, 189857, 215816, 316304, 379714, 431632, 632608, 759428, 863264, 1265216, 1518856, 1726528, 2530432, 3037712, 3453056, 6075424, 10062421, 12150848, 20124842, 24301696, 40249684, 80499368, 160998736, 321997472, 643994944, 1287989888]

約数ペア:

[(1, 1287989888), (2, 643994944), (4, 321997472), (8, 160998736), (16, 80499368), (32, 40249684), (53, 24301696), (64, 20124842), (106, 12150848), (128, 10062421), (212, 6075424), (373, 3453056), (424, 3037712), (509, 2530432), (746, 1726528), (848, 1518856), (1018, 1265216), (1492, 863264), (1696, 759428), (2036, 632608), (2984, 431632), (3392, 379714), (4072, 316304), (5968, 215816), (6784, 189857), (8144, 158152), (11936, 107908), (16288, 79076), (19769, 65152), (23872, 53954), (26977, 47744), (32576, 39538)]