168357728

素因数分解:

$2^5\times 7^2\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{227}}^1$

素因数の和:305

約数の個数: 144

約数和(自身を含む): 432298944

約数和(自身を除く): 263941216

約数列:

[1, 2, 4, 7, 8, 11, 14, 16, 22, 28, 32, 43, 44, 49, 56, 77, 86, 88, 98, 112, 154, 172, 176, 196, 224, 227, 301, 308, 344, 352, 392, 454, 473, 539, 602, 616, 688, 784, 908, 946, 1078, 1204, 1232, 1376, 1568, 1589, 1816, 1892, 2107, 2156, 2408, 2464, 2497, 3178, 3311, 3632, 3784, 4214, 4312, 4816, 4994, 6356, 6622, 7264, 7568, 8428, 8624, 9632, 9761, 9988, 11123, 12712, 13244, 15136, 16856, 17248, 17479, 19522, 19976, 22246, 23177, 25424, 26488, 33712, 34958, 39044, 39952, 44492, 46354, 50848, 52976, 67424, 68327, 69916, 78088, 79904, 88984, 92708, 105952, 107371, 122353, 136654, 139832, 156176, 177968, 185416, 214742, 244706, 273308, 279664, 312352, 355936, 370832, 429484, 478289, 489412, 546616, 559328, 741664, 751597, 858968, 956578, 978824, 1093232, 1503194, 1717936, 1913156, 1957648, 2186464, 3006388, 3435872, 3826312, 3915296, 5261179, 6012776, 7652624, 10522358, 12025552, 15305248, 21044716, 24051104, 42089432, 84178864, 168357728]

約数ペア:

[(1, 168357728), (2, 84178864), (4, 42089432), (7, 24051104), (8, 21044716), (11, 15305248), (14, 12025552), (16, 10522358), (22, 7652624), (28, 6012776), (32, 5261179), (43, 3915296), (44, 3826312), (49, 3435872), (56, 3006388), (77, 2186464), (86, 1957648), (88, 1913156), (98, 1717936), (112, 1503194), (154, 1093232), (172, 978824), (176, 956578), (196, 858968), (224, 751597), (227, 741664), (301, 559328), (308, 546616), (344, 489412), (352, 478289), (392, 429484), (454, 370832), (473, 355936), (539, 312352), (602, 279664), (616, 273308), (688, 244706), (784, 214742), (908, 185416), (946, 177968), (1078, 156176), (1204, 139832), (1232, 136654), (1376, 122353), (1568, 107371), (1589, 105952), (1816, 92708), (1892, 88984), (2107, 79904), (2156, 78088), (2408, 69916), (2464, 68327), (2497, 67424), (3178, 52976), (3311, 50848), (3632, 46354), (3784, 44492), (4214, 39952), (4312, 39044), (4816, 34958), (4994, 33712), (6356, 26488), (6622, 25424), (7264, 23177), (7568, 22246), (8428, 19976), (8624, 19522), (9632, 17479), (9761, 17248), (9988, 16856), (11123, 15136), (12712, 13244)]