261744

素因数分解:

$2^4\times 3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1$

素因数の和:78

約数の個数: 80

約数和(自身を含む): 833280

約数和(自身を除く): 571536

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 19, 21, 24, 28, 38, 41, 42, 48, 56, 57, 76, 82, 84, 112, 114, 123, 133, 152, 164, 168, 228, 246, 266, 287, 304, 328, 336, 399, 456, 492, 532, 574, 656, 779, 798, 861, 912, 984, 1064, 1148, 1558, 1596, 1722, 1968, 2128, 2296, 2337, 3116, 3192, 3444, 4592, 4674, 5453, 6232, 6384, 6888, 9348, 10906, 12464, 13776, 16359, 18696, 21812, 32718, 37392, 43624, 65436, 87248, 130872, 261744]

約数ペア:

[(1, 261744), (2, 130872), (3, 87248), (4, 65436), (6, 43624), (7, 37392), (8, 32718), (12, 21812), (14, 18696), (16, 16359), (19, 13776), (21, 12464), (24, 10906), (28, 9348), (38, 6888), (41, 6384), (42, 6232), (48, 5453), (56, 4674), (57, 4592), (76, 3444), (82, 3192), (84, 3116), (112, 2337), (114, 2296), (123, 2128), (133, 1968), (152, 1722), (164, 1596), (168, 1558), (228, 1148), (246, 1064), (266, 984), (287, 912), (304, 861), (328, 798), (336, 779), (399, 656), (456, 574), (492, 532)]