131451576

素因数分解:

$2^3\times 3^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{79}}^1\times {\mathrm{89}}^1$

素因数の和:237

約数の個数: 128

約数和(自身を含む): 362880000

約数和(自身を除く): 231428424

約数列:

[1, 2, 3, 4, 6, 8, 12, 19, 24, 38, 41, 57, 76, 79, 82, 89, 114, 123, 152, 158, 164, 178, 228, 237, 246, 267, 316, 328, 356, 456, 474, 492, 534, 632, 712, 779, 948, 984, 1068, 1501, 1558, 1691, 1896, 2136, 2337, 3002, 3116, 3239, 3382, 3649, 4503, 4674, 5073, 6004, 6232, 6478, 6764, 7031, 7298, 9006, 9348, 9717, 10146, 10947, 12008, 12956, 13528, 14062, 14596, 18012, 18696, 19434, 20292, 21093, 21894, 25912, 28124, 29192, 36024, 38868, 40584, 42186, 43788, 56248, 61541, 69331, 77736, 84372, 87576, 123082, 133589, 138662, 168744, 184623, 207993, 246164, 267178, 277324, 288271, 369246, 400767, 415986, 492328, 534356, 554648, 576542, 738492, 801534, 831972, 864813, 1068712, 1153084, 1476984, 1603068, 1663944, 1729626, 2306168, 3206136, 3459252, 5477149, 6918504, 10954298, 16431447, 21908596, 32862894, 43817192, 65725788, 131451576]

約数ペア:

[(1, 131451576), (2, 65725788), (3, 43817192), (4, 32862894), (6, 21908596), (8, 16431447), (12, 10954298), (19, 6918504), (24, 5477149), (38, 3459252), (41, 3206136), (57, 2306168), (76, 1729626), (79, 1663944), (82, 1603068), (89, 1476984), (114, 1153084), (123, 1068712), (152, 864813), (158, 831972), (164, 801534), (178, 738492), (228, 576542), (237, 554648), (246, 534356), (267, 492328), (316, 415986), (328, 400767), (356, 369246), (456, 288271), (474, 277324), (492, 267178), (534, 246164), (632, 207993), (712, 184623), (779, 168744), (948, 138662), (984, 133589), (1068, 123082), (1501, 87576), (1558, 84372), (1691, 77736), (1896, 69331), (2136, 61541), (2337, 56248), (3002, 43788), (3116, 42186), (3239, 40584), (3382, 38868), (3649, 36024), (4503, 29192), (4674, 28124), (5073, 25912), (6004, 21894), (6232, 21093), (6478, 20292), (6764, 19434), (7031, 18696), (7298, 18012), (9006, 14596), (9348, 14062), (9717, 13528), (10146, 12956), (10947, 12008)]