639290240

素因数分解:

$2^7\times 5^1\times {\mathrm{47}}^1\times {\mathrm{53}}^1\times {\mathrm{401}}^1$

素因数の和:520

約数の個数: 128

約数和(自身を含む): 1594235520

約数和(自身を除く): 954945280

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 47, 53, 64, 80, 94, 106, 128, 160, 188, 212, 235, 265, 320, 376, 401, 424, 470, 530, 640, 752, 802, 848, 940, 1060, 1504, 1604, 1696, 1880, 2005, 2120, 2491, 3008, 3208, 3392, 3760, 4010, 4240, 4982, 6016, 6416, 6784, 7520, 8020, 8480, 9964, 12455, 12832, 15040, 16040, 16960, 18847, 19928, 21253, 24910, 25664, 30080, 32080, 33920, 37694, 39856, 42506, 49820, 51328, 64160, 75388, 79712, 85012, 94235, 99640, 106265, 128320, 150776, 159424, 170024, 188470, 199280, 212530, 256640, 301552, 318848, 340048, 376940, 398560, 425060, 603104, 680096, 753880, 797120, 850120, 998891, 1206208, 1360192, 1507760, 1594240, 1700240, 1997782, 2412416, 2720384, 3015520, 3400480, 3995564, 4994455, 6031040, 6800960, 7991128, 9988910, 12062080, 13601920, 15982256, 19977820, 31964512, 39955640, 63929024, 79911280, 127858048, 159822560, 319645120, 639290240]

約数ペア:

[(1, 639290240), (2, 319645120), (4, 159822560), (5, 127858048), (8, 79911280), (10, 63929024), (16, 39955640), (20, 31964512), (32, 19977820), (40, 15982256), (47, 13601920), (53, 12062080), (64, 9988910), (80, 7991128), (94, 6800960), (106, 6031040), (128, 4994455), (160, 3995564), (188, 3400480), (212, 3015520), (235, 2720384), (265, 2412416), (320, 1997782), (376, 1700240), (401, 1594240), (424, 1507760), (470, 1360192), (530, 1206208), (640, 998891), (752, 850120), (802, 797120), (848, 753880), (940, 680096), (1060, 603104), (1504, 425060), (1604, 398560), (1696, 376940), (1880, 340048), (2005, 318848), (2120, 301552), (2491, 256640), (3008, 212530), (3208, 199280), (3392, 188470), (3760, 170024), (4010, 159424), (4240, 150776), (4982, 128320), (6016, 106265), (6416, 99640), (6784, 94235), (7520, 85012), (8020, 79712), (8480, 75388), (9964, 64160), (12455, 51328), (12832, 49820), (15040, 42506), (16040, 39856), (16960, 37694), (18847, 33920), (19928, 32080), (21253, 30080), (24910, 25664)]