15725640

素因数分解:

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

素因数の和:311

約数の個数: 128

約数和(自身を含む): 54754560

約数和(自身を除く): 39028920

約数列:

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

約数ペア:

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