20166400

素因数分解:

$2^8\times 5^2\times {\mathrm{23}}^1\times {\mathrm{137}}^1$

素因数の和:186

約数の個数: 108

約数和(自身を含む): 52465392

約数和(自身を除く): 32298992

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 25, 32, 40, 46, 50, 64, 80, 92, 100, 115, 128, 137, 160, 184, 200, 230, 256, 274, 320, 368, 400, 460, 548, 575, 640, 685, 736, 800, 920, 1096, 1150, 1280, 1370, 1472, 1600, 1840, 2192, 2300, 2740, 2944, 3151, 3200, 3425, 3680, 4384, 4600, 5480, 5888, 6302, 6400, 6850, 7360, 8768, 9200, 10960, 12604, 13700, 14720, 15755, 17536, 18400, 21920, 25208, 27400, 29440, 31510, 35072, 36800, 43840, 50416, 54800, 63020, 73600, 78775, 87680, 100832, 109600, 126040, 147200, 157550, 175360, 201664, 219200, 252080, 315100, 403328, 438400, 504160, 630200, 806656, 876800, 1008320, 1260400, 2016640, 2520800, 4033280, 5041600, 10083200, 20166400]

約数ペア:

[(1, 20166400), (2, 10083200), (4, 5041600), (5, 4033280), (8, 2520800), (10, 2016640), (16, 1260400), (20, 1008320), (23, 876800), (25, 806656), (32, 630200), (40, 504160), (46, 438400), (50, 403328), (64, 315100), (80, 252080), (92, 219200), (100, 201664), (115, 175360), (128, 157550), (137, 147200), (160, 126040), (184, 109600), (200, 100832), (230, 87680), (256, 78775), (274, 73600), (320, 63020), (368, 54800), (400, 50416), (460, 43840), (548, 36800), (575, 35072), (640, 31510), (685, 29440), (736, 27400), (800, 25208), (920, 21920), (1096, 18400), (1150, 17536), (1280, 15755), (1370, 14720), (1472, 13700), (1600, 12604), (1840, 10960), (2192, 9200), (2300, 8768), (2740, 7360), (2944, 6850), (3151, 6400), (3200, 6302), (3425, 5888), (3680, 5480), (4384, 4600)]