31451280

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{97}}^1\times {\mathrm{193}}^1$

素因数の和:313

約数の個数: 160

約数和(自身を含む): 113159424

約数和(自身を除く): 81708144

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 35, 40, 42, 48, 56, 60, 70, 80, 84, 97, 105, 112, 120, 140, 168, 193, 194, 210, 240, 280, 291, 336, 386, 388, 420, 485, 560, 579, 582, 679, 772, 776, 840, 965, 970, 1158, 1164, 1351, 1358, 1455, 1544, 1552, 1680, 1930, 1940, 2037, 2316, 2328, 2702, 2716, 2895, 2910, 3088, 3395, 3860, 3880, 4053, 4074, 4632, 4656, 5404, 5432, 5790, 5820, 6755, 6790, 7720, 7760, 8106, 8148, 9264, 10185, 10808, 10864, 11580, 11640, 13510, 13580, 15440, 16212, 16296, 18721, 20265, 20370, 21616, 23160, 23280, 27020, 27160, 32424, 32592, 37442, 40530, 40740, 46320, 54040, 54320, 56163, 64848, 74884, 81060, 81480, 93605, 108080, 112326, 131047, 149768, 162120, 162960, 187210, 224652, 262094, 280815, 299536, 324240, 374420, 393141, 449304, 524188, 561630, 655235, 748840, 786282, 898608, 1048376, 1123260, 1310470, 1497680, 1572564, 1965705, 2096752, 2246520, 2620940, 3145128, 3931410, 4493040, 5241880, 6290256, 7862820, 10483760, 15725640, 31451280]

約数ペア:

[(1, 31451280), (2, 15725640), (3, 10483760), (4, 7862820), (5, 6290256), (6, 5241880), (7, 4493040), (8, 3931410), (10, 3145128), (12, 2620940), (14, 2246520), (15, 2096752), (16, 1965705), (20, 1572564), (21, 1497680), (24, 1310470), (28, 1123260), (30, 1048376), (35, 898608), (40, 786282), (42, 748840), (48, 655235), (56, 561630), (60, 524188), (70, 449304), (80, 393141), (84, 374420), (97, 324240), (105, 299536), (112, 280815), (120, 262094), (140, 224652), (168, 187210), (193, 162960), (194, 162120), (210, 149768), (240, 131047), (280, 112326), (291, 108080), (336, 93605), (386, 81480), (388, 81060), (420, 74884), (485, 64848), (560, 56163), (579, 54320), (582, 54040), (679, 46320), (772, 40740), (776, 40530), (840, 37442), (965, 32592), (970, 32424), (1158, 27160), (1164, 27020), (1351, 23280), (1358, 23160), (1455, 21616), (1544, 20370), (1552, 20265), (1680, 18721), (1930, 16296), (1940, 16212), (2037, 15440), (2316, 13580), (2328, 13510), (2702, 11640), (2716, 11580), (2895, 10864), (2910, 10808), (3088, 10185), (3395, 9264), (3860, 8148), (3880, 8106), (4053, 7760), (4074, 7720), (4632, 6790), (4656, 6755), (5404, 5820), (5432, 5790)]