261876720

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{97}}^1\times {\mathrm{1607}}^1$

素因数の和:1727

約数の個数: 160

約数和(自身を含む): 937939968

約数和(自身を除く): 676063248

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, 194, 210, 240, 280, 291, 336, 388, 420, 485, 560, 582, 679, 776, 840, 970, 1164, 1358, 1455, 1552, 1607, 1680, 1940, 2037, 2328, 2716, 2910, 3214, 3395, 3880, 4074, 4656, 4821, 5432, 5820, 6428, 6790, 7760, 8035, 8148, 9642, 10185, 10864, 11249, 11640, 12856, 13580, 16070, 16296, 19284, 20370, 22498, 23280, 24105, 25712, 27160, 32140, 32592, 33747, 38568, 40740, 44996, 48210, 54320, 56245, 64280, 67494, 77136, 81480, 89992, 96420, 112490, 128560, 134988, 155879, 162960, 168735, 179984, 192840, 224980, 269976, 311758, 337470, 385680, 449960, 467637, 539952, 623516, 674940, 779395, 899920, 935274, 1091153, 1247032, 1349880, 1558790, 1870548, 2182306, 2338185, 2494064, 2699760, 3117580, 3273459, 3741096, 4364612, 4676370, 5455765, 6235160, 6546918, 7482192, 8729224, 9352740, 10911530, 12470320, 13093836, 16367295, 17458448, 18705480, 21823060, 26187672, 32734590, 37410960, 43646120, 52375344, 65469180, 87292240, 130938360, 261876720]

約数ペア:

[(1, 261876720), (2, 130938360), (3, 87292240), (4, 65469180), (5, 52375344), (6, 43646120), (7, 37410960), (8, 32734590), (10, 26187672), (12, 21823060), (14, 18705480), (15, 17458448), (16, 16367295), (20, 13093836), (21, 12470320), (24, 10911530), (28, 9352740), (30, 8729224), (35, 7482192), (40, 6546918), (42, 6235160), (48, 5455765), (56, 4676370), (60, 4364612), (70, 3741096), (80, 3273459), (84, 3117580), (97, 2699760), (105, 2494064), (112, 2338185), (120, 2182306), (140, 1870548), (168, 1558790), (194, 1349880), (210, 1247032), (240, 1091153), (280, 935274), (291, 899920), (336, 779395), (388, 674940), (420, 623516), (485, 539952), (560, 467637), (582, 449960), (679, 385680), (776, 337470), (840, 311758), (970, 269976), (1164, 224980), (1358, 192840), (1455, 179984), (1552, 168735), (1607, 162960), (1680, 155879), (1940, 134988), (2037, 128560), (2328, 112490), (2716, 96420), (2910, 89992), (3214, 81480), (3395, 77136), (3880, 67494), (4074, 64280), (4656, 56245), (4821, 54320), (5432, 48210), (5820, 44996), (6428, 40740), (6790, 38568), (7760, 33747), (8035, 32592), (8148, 32140), (9642, 27160), (10185, 25712), (10864, 24105), (11249, 23280), (11640, 22498), (12856, 20370), (13580, 19284), (16070, 16296)]