328777600

素因数分解:

$2^7\times 5^2\times {\mathrm{127}}^1\times {\mathrm{809}}^1$

素因数の和:960

約数の個数: 96

約数和(自身を含む): 819590400

約数和(自身を除く): 490812800

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 127, 128, 160, 200, 254, 320, 400, 508, 635, 640, 800, 809, 1016, 1270, 1600, 1618, 2032, 2540, 3175, 3200, 3236, 4045, 4064, 5080, 6350, 6472, 8090, 8128, 10160, 12700, 12944, 16180, 16256, 20225, 20320, 25400, 25888, 32360, 40450, 40640, 50800, 51776, 64720, 80900, 81280, 101600, 102743, 103552, 129440, 161800, 203200, 205486, 258880, 323600, 406400, 410972, 513715, 517760, 647200, 821944, 1027430, 1294400, 1643888, 2054860, 2568575, 2588800, 3287776, 4109720, 5137150, 6575552, 8219440, 10274300, 13151104, 16438880, 20548600, 32877760, 41097200, 65755520, 82194400, 164388800, 328777600]

約数ペア:

[(1, 328777600), (2, 164388800), (4, 82194400), (5, 65755520), (8, 41097200), (10, 32877760), (16, 20548600), (20, 16438880), (25, 13151104), (32, 10274300), (40, 8219440), (50, 6575552), (64, 5137150), (80, 4109720), (100, 3287776), (127, 2588800), (128, 2568575), (160, 2054860), (200, 1643888), (254, 1294400), (320, 1027430), (400, 821944), (508, 647200), (635, 517760), (640, 513715), (800, 410972), (809, 406400), (1016, 323600), (1270, 258880), (1600, 205486), (1618, 203200), (2032, 161800), (2540, 129440), (3175, 103552), (3200, 102743), (3236, 101600), (4045, 81280), (4064, 80900), (5080, 64720), (6350, 51776), (6472, 50800), (8090, 40640), (8128, 40450), (10160, 32360), (12700, 25888), (12944, 25400), (16180, 20320), (16256, 20225)]