18399080

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{2857}}^1$

素因数の和:2898

約数の個数: 64

約数和(自身を含む): 49386240

約数和(自身を除く): 30987160

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 23, 28, 35, 40, 46, 56, 70, 92, 115, 140, 161, 184, 230, 280, 322, 460, 644, 805, 920, 1288, 1610, 2857, 3220, 5714, 6440, 11428, 14285, 19999, 22856, 28570, 39998, 57140, 65711, 79996, 99995, 114280, 131422, 159992, 199990, 262844, 328555, 399980, 459977, 525688, 657110, 799960, 919954, 1314220, 1839908, 2299885, 2628440, 3679816, 4599770, 9199540, 18399080]

約数ペア:

[(1, 18399080), (2, 9199540), (4, 4599770), (5, 3679816), (7, 2628440), (8, 2299885), (10, 1839908), (14, 1314220), (20, 919954), (23, 799960), (28, 657110), (35, 525688), (40, 459977), (46, 399980), (56, 328555), (70, 262844), (92, 199990), (115, 159992), (140, 131422), (161, 114280), (184, 99995), (230, 79996), (280, 65711), (322, 57140), (460, 39998), (644, 28570), (805, 22856), (920, 19999), (1288, 14285), (1610, 11428), (2857, 6440), (3220, 5714)]