20302178800

素因数分解:

$2^4\times 5^2\times {\mathrm{2179}}^1\times {\mathrm{23293}}^1$

素因数の和:25490

約数の個数: 60

約数和(自身を含む): 48800464120

約数和(自身を除く): 28498285320

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 2179, 4358, 8716, 10895, 17432, 21790, 23293, 34864, 43580, 46586, 54475, 87160, 93172, 108950, 116465, 174320, 186344, 217900, 232930, 372688, 435800, 465860, 582325, 871600, 931720, 1164650, 1863440, 2329300, 4658600, 9317200, 50755447, 101510894, 203021788, 253777235, 406043576, 507554470, 812087152, 1015108940, 1268886175, 2030217880, 2537772350, 4060435760, 5075544700, 10151089400, 20302178800]

約数ペア:

[(1, 20302178800), (2, 10151089400), (4, 5075544700), (5, 4060435760), (8, 2537772350), (10, 2030217880), (16, 1268886175), (20, 1015108940), (25, 812087152), (40, 507554470), (50, 406043576), (80, 253777235), (100, 203021788), (200, 101510894), (400, 50755447), (2179, 9317200), (4358, 4658600), (8716, 2329300), (10895, 1863440), (17432, 1164650), (21790, 931720), (23293, 871600), (34864, 582325), (43580, 465860), (46586, 435800), (54475, 372688), (87160, 232930), (93172, 217900), (108950, 186344), (116465, 174320)]