51911920

素因数分解:

$2^4\times 5^1\times {\mathrm{23}}^1\times {\mathrm{89}}^1\times {\mathrm{317}}^1$

素因数の和:442

約数の個数: 80

約数和(自身を含む): 127759680

約数和(自身を除く): 75847760

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 40, 46, 80, 89, 92, 115, 178, 184, 230, 317, 356, 368, 445, 460, 634, 712, 890, 920, 1268, 1424, 1585, 1780, 1840, 2047, 2536, 3170, 3560, 4094, 5072, 6340, 7120, 7291, 8188, 10235, 12680, 14582, 16376, 20470, 25360, 28213, 29164, 32752, 36455, 40940, 56426, 58328, 72910, 81880, 112852, 116656, 141065, 145820, 163760, 225704, 282130, 291640, 451408, 564260, 583280, 648899, 1128520, 1297798, 2257040, 2595596, 3244495, 5191192, 6488990, 10382384, 12977980, 25955960, 51911920]

約数ペア:

[(1, 51911920), (2, 25955960), (4, 12977980), (5, 10382384), (8, 6488990), (10, 5191192), (16, 3244495), (20, 2595596), (23, 2257040), (40, 1297798), (46, 1128520), (80, 648899), (89, 583280), (92, 564260), (115, 451408), (178, 291640), (184, 282130), (230, 225704), (317, 163760), (356, 145820), (368, 141065), (445, 116656), (460, 112852), (634, 81880), (712, 72910), (890, 58328), (920, 56426), (1268, 40940), (1424, 36455), (1585, 32752), (1780, 29164), (1840, 28213), (2047, 25360), (2536, 20470), (3170, 16376), (3560, 14582), (4094, 12680), (5072, 10235), (6340, 8188), (7120, 7291)]