1816500560

素因数分解:

$2^4\times 5^1\times 7^6\times {\mathrm{193}}^1$

素因数の和:248

約数の個数: 140

約数和(自身を含む): 4952781588

約数和(自身を除く): 3136281028

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 49, 56, 70, 80, 98, 112, 140, 193, 196, 245, 280, 343, 386, 392, 490, 560, 686, 772, 784, 965, 980, 1351, 1372, 1544, 1715, 1930, 1960, 2401, 2702, 2744, 3088, 3430, 3860, 3920, 4802, 5404, 5488, 6755, 6860, 7720, 9457, 9604, 10808, 12005, 13510, 13720, 15440, 16807, 18914, 19208, 21616, 24010, 27020, 27440, 33614, 37828, 38416, 47285, 48020, 54040, 66199, 67228, 75656, 84035, 94570, 96040, 108080, 117649, 132398, 134456, 151312, 168070, 189140, 192080, 235298, 264796, 268912, 330995, 336140, 378280, 463393, 470596, 529592, 588245, 661990, 672280, 756560, 926786, 941192, 1059184, 1176490, 1323980, 1344560, 1853572, 1882384, 2316965, 2352980, 2647960, 3243751, 3707144, 4633930, 4705960, 5295920, 6487502, 7414288, 9267860, 9411920, 12975004, 16218755, 18535720, 22706257, 25950008, 32437510, 37071440, 45412514, 51900016, 64875020, 90825028, 113531285, 129750040, 181650056, 227062570, 259500080, 363300112, 454125140, 908250280, 1816500560]

約数ペア:

[(1, 1816500560), (2, 908250280), (4, 454125140), (5, 363300112), (7, 259500080), (8, 227062570), (10, 181650056), (14, 129750040), (16, 113531285), (20, 90825028), (28, 64875020), (35, 51900016), (40, 45412514), (49, 37071440), (56, 32437510), (70, 25950008), (80, 22706257), (98, 18535720), (112, 16218755), (140, 12975004), (193, 9411920), (196, 9267860), (245, 7414288), (280, 6487502), (343, 5295920), (386, 4705960), (392, 4633930), (490, 3707144), (560, 3243751), (686, 2647960), (772, 2352980), (784, 2316965), (965, 1882384), (980, 1853572), (1351, 1344560), (1372, 1323980), (1544, 1176490), (1715, 1059184), (1930, 941192), (1960, 926786), (2401, 756560), (2702, 672280), (2744, 661990), (3088, 588245), (3430, 529592), (3860, 470596), (3920, 463393), (4802, 378280), (5404, 336140), (5488, 330995), (6755, 268912), (6860, 264796), (7720, 235298), (9457, 192080), (9604, 189140), (10808, 168070), (12005, 151312), (13510, 134456), (13720, 132398), (15440, 117649), (16807, 108080), (18914, 96040), (19208, 94570), (21616, 84035), (24010, 75656), (27020, 67228), (27440, 66199), (33614, 54040), (37828, 48020), (38416, 47285)]