261919504

素因数分解:

$2^4\times 7^2\times {\mathrm{11}}^3\times {\mathrm{251}}^1$

素因数の和:306

約数の個数: 120

約数和(自身を含む): 651895776

約数和(自身を除く): 389976272

約数列:

[1, 2, 4, 7, 8, 11, 14, 16, 22, 28, 44, 49, 56, 77, 88, 98, 112, 121, 154, 176, 196, 242, 251, 308, 392, 484, 502, 539, 616, 784, 847, 968, 1004, 1078, 1232, 1331, 1694, 1757, 1936, 2008, 2156, 2662, 2761, 3388, 3514, 4016, 4312, 5324, 5522, 5929, 6776, 7028, 8624, 9317, 10648, 11044, 11858, 12299, 13552, 14056, 18634, 19327, 21296, 22088, 23716, 24598, 28112, 30371, 37268, 38654, 44176, 47432, 49196, 60742, 65219, 74536, 77308, 94864, 98392, 121484, 130438, 135289, 149072, 154616, 196784, 212597, 242968, 260876, 270578, 309232, 334081, 425194, 485936, 521752, 541156, 668162, 850388, 1043504, 1082312, 1336324, 1488179, 1700776, 2164624, 2338567, 2672648, 2976358, 3401552, 4677134, 5345296, 5952716, 9354268, 11905432, 16369969, 18708536, 23810864, 32739938, 37417072, 65479876, 130959752, 261919504]

約数ペア:

[(1, 261919504), (2, 130959752), (4, 65479876), (7, 37417072), (8, 32739938), (11, 23810864), (14, 18708536), (16, 16369969), (22, 11905432), (28, 9354268), (44, 5952716), (49, 5345296), (56, 4677134), (77, 3401552), (88, 2976358), (98, 2672648), (112, 2338567), (121, 2164624), (154, 1700776), (176, 1488179), (196, 1336324), (242, 1082312), (251, 1043504), (308, 850388), (392, 668162), (484, 541156), (502, 521752), (539, 485936), (616, 425194), (784, 334081), (847, 309232), (968, 270578), (1004, 260876), (1078, 242968), (1232, 212597), (1331, 196784), (1694, 154616), (1757, 149072), (1936, 135289), (2008, 130438), (2156, 121484), (2662, 98392), (2761, 94864), (3388, 77308), (3514, 74536), (4016, 65219), (4312, 60742), (5324, 49196), (5522, 47432), (5929, 44176), (6776, 38654), (7028, 37268), (8624, 30371), (9317, 28112), (10648, 24598), (11044, 23716), (11858, 22088), (12299, 21296), (13552, 19327), (14056, 18634)]