20608000

素因数分解:

$2^{10}\times 5^3\times 7^1\times {\mathrm{23}}^1$

素因数の和:65

約数の個数: 176

約数和(自身を含む): 61311744

約数和(自身を除く): 40703744

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 23, 25, 28, 32, 35, 40, 46, 50, 56, 64, 70, 80, 92, 100, 112, 115, 125, 128, 140, 160, 161, 175, 184, 200, 224, 230, 250, 256, 280, 320, 322, 350, 368, 400, 448, 460, 500, 512, 560, 575, 640, 644, 700, 736, 800, 805, 875, 896, 920, 1000, 1024, 1120, 1150, 1280, 1288, 1400, 1472, 1600, 1610, 1750, 1792, 1840, 2000, 2240, 2300, 2560, 2576, 2800, 2875, 2944, 3200, 3220, 3500, 3584, 3680, 4000, 4025, 4480, 4600, 5120, 5152, 5600, 5750, 5888, 6400, 6440, 7000, 7168, 7360, 8000, 8050, 8960, 9200, 10304, 11200, 11500, 11776, 12800, 12880, 14000, 14720, 16000, 16100, 17920, 18400, 20125, 20608, 22400, 23000, 23552, 25600, 25760, 28000, 29440, 32000, 32200, 35840, 36800, 40250, 41216, 44800, 46000, 51520, 56000, 58880, 64000, 64400, 73600, 80500, 82432, 89600, 92000, 103040, 112000, 117760, 128000, 128800, 147200, 161000, 164864, 179200, 184000, 206080, 224000, 257600, 294400, 322000, 368000, 412160, 448000, 515200, 588800, 644000, 736000, 824320, 896000, 1030400, 1288000, 1472000, 2060800, 2576000, 2944000, 4121600, 5152000, 10304000, 20608000]

約数ペア:

[(1, 20608000), (2, 10304000), (4, 5152000), (5, 4121600), (7, 2944000), (8, 2576000), (10, 2060800), (14, 1472000), (16, 1288000), (20, 1030400), (23, 896000), (25, 824320), (28, 736000), (32, 644000), (35, 588800), (40, 515200), (46, 448000), (50, 412160), (56, 368000), (64, 322000), (70, 294400), (80, 257600), (92, 224000), (100, 206080), (112, 184000), (115, 179200), (125, 164864), (128, 161000), (140, 147200), (160, 128800), (161, 128000), (175, 117760), (184, 112000), (200, 103040), (224, 92000), (230, 89600), (250, 82432), (256, 80500), (280, 73600), (320, 64400), (322, 64000), (350, 58880), (368, 56000), (400, 51520), (448, 46000), (460, 44800), (500, 41216), (512, 40250), (560, 36800), (575, 35840), (640, 32200), (644, 32000), (700, 29440), (736, 28000), (800, 25760), (805, 25600), (875, 23552), (896, 23000), (920, 22400), (1000, 20608), (1024, 20125), (1120, 18400), (1150, 17920), (1280, 16100), (1288, 16000), (1400, 14720), (1472, 14000), (1600, 12880), (1610, 12800), (1750, 11776), (1792, 11500), (1840, 11200), (2000, 10304), (2240, 9200), (2300, 8960), (2560, 8050), (2576, 8000), (2800, 7360), (2875, 7168), (2944, 7000), (3200, 6440), (3220, 6400), (3500, 5888), (3584, 5750), (3680, 5600), (4000, 5152), (4025, 5120), (4480, 4600)]