178697120

素因数分解:

$2^5\times 5^1\times 7^2\times {\mathrm{23}}^1\times {\mathrm{991}}^1$

素因数の和:1043

約数の個数: 144

約数和(自身を含む): 512967168

約数和(自身を除く): 334270048

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 23, 28, 32, 35, 40, 46, 49, 56, 70, 80, 92, 98, 112, 115, 140, 160, 161, 184, 196, 224, 230, 245, 280, 322, 368, 392, 460, 490, 560, 644, 736, 784, 805, 920, 980, 991, 1120, 1127, 1288, 1568, 1610, 1840, 1960, 1982, 2254, 2576, 3220, 3680, 3920, 3964, 4508, 4955, 5152, 5635, 6440, 6937, 7840, 7928, 9016, 9910, 11270, 12880, 13874, 15856, 18032, 19820, 22540, 22793, 25760, 27748, 31712, 34685, 36064, 39640, 45080, 45586, 48559, 55496, 69370, 79280, 90160, 91172, 97118, 110992, 113965, 138740, 158560, 159551, 180320, 182344, 194236, 221984, 227930, 242795, 277480, 319102, 364688, 388472, 455860, 485590, 554960, 638204, 729376, 776944, 797755, 911720, 971180, 1109920, 1116857, 1276408, 1553888, 1595510, 1823440, 1942360, 2233714, 2552816, 3191020, 3646880, 3884720, 4467428, 5105632, 5584285, 6382040, 7769440, 8934856, 11168570, 12764080, 17869712, 22337140, 25528160, 35739424, 44674280, 89348560, 178697120]

約数ペア:

[(1, 178697120), (2, 89348560), (4, 44674280), (5, 35739424), (7, 25528160), (8, 22337140), (10, 17869712), (14, 12764080), (16, 11168570), (20, 8934856), (23, 7769440), (28, 6382040), (32, 5584285), (35, 5105632), (40, 4467428), (46, 3884720), (49, 3646880), (56, 3191020), (70, 2552816), (80, 2233714), (92, 1942360), (98, 1823440), (112, 1595510), (115, 1553888), (140, 1276408), (160, 1116857), (161, 1109920), (184, 971180), (196, 911720), (224, 797755), (230, 776944), (245, 729376), (280, 638204), (322, 554960), (368, 485590), (392, 455860), (460, 388472), (490, 364688), (560, 319102), (644, 277480), (736, 242795), (784, 227930), (805, 221984), (920, 194236), (980, 182344), (991, 180320), (1120, 159551), (1127, 158560), (1288, 138740), (1568, 113965), (1610, 110992), (1840, 97118), (1960, 91172), (1982, 90160), (2254, 79280), (2576, 69370), (3220, 55496), (3680, 48559), (3920, 45586), (3964, 45080), (4508, 39640), (4955, 36064), (5152, 34685), (5635, 31712), (6440, 27748), (6937, 25760), (7840, 22793), (7928, 22540), (9016, 19820), (9910, 18032), (11270, 15856), (12880, 13874)]