281117312

素因数分解:

$2^7\times 7^3\times {\mathrm{19}}^1\times {\mathrm{337}}^1$

素因数の和:391

約数の個数: 128

約数和(自身を含む): 689520000

約数和(自身を除く): 408402688

約数列:

[1, 2, 4, 7, 8, 14, 16, 19, 28, 32, 38, 49, 56, 64, 76, 98, 112, 128, 133, 152, 196, 224, 266, 304, 337, 343, 392, 448, 532, 608, 674, 686, 784, 896, 931, 1064, 1216, 1348, 1372, 1568, 1862, 2128, 2359, 2432, 2696, 2744, 3136, 3724, 4256, 4718, 5392, 5488, 6272, 6403, 6517, 7448, 8512, 9436, 10784, 10976, 12806, 13034, 14896, 16513, 17024, 18872, 21568, 21952, 25612, 26068, 29792, 33026, 37744, 43136, 43904, 44821, 51224, 52136, 59584, 66052, 75488, 89642, 102448, 104272, 115591, 119168, 132104, 150976, 179284, 204896, 208544, 231182, 264208, 301952, 313747, 358568, 409792, 417088, 462364, 528416, 627494, 717136, 819584, 834176, 924728, 1056832, 1254988, 1434272, 1849456, 2113664, 2196229, 2509976, 2868544, 3698912, 4392458, 5019952, 5737088, 7397824, 8784916, 10039904, 14795648, 17569832, 20079808, 35139664, 40159616, 70279328, 140558656, 281117312]

約数ペア:

[(1, 281117312), (2, 140558656), (4, 70279328), (7, 40159616), (8, 35139664), (14, 20079808), (16, 17569832), (19, 14795648), (28, 10039904), (32, 8784916), (38, 7397824), (49, 5737088), (56, 5019952), (64, 4392458), (76, 3698912), (98, 2868544), (112, 2509976), (128, 2196229), (133, 2113664), (152, 1849456), (196, 1434272), (224, 1254988), (266, 1056832), (304, 924728), (337, 834176), (343, 819584), (392, 717136), (448, 627494), (532, 528416), (608, 462364), (674, 417088), (686, 409792), (784, 358568), (896, 313747), (931, 301952), (1064, 264208), (1216, 231182), (1348, 208544), (1372, 204896), (1568, 179284), (1862, 150976), (2128, 132104), (2359, 119168), (2432, 115591), (2696, 104272), (2744, 102448), (3136, 89642), (3724, 75488), (4256, 66052), (4718, 59584), (5392, 52136), (5488, 51224), (6272, 44821), (6403, 43904), (6517, 43136), (7448, 37744), (8512, 33026), (9436, 29792), (10784, 26068), (10976, 25612), (12806, 21952), (13034, 21568), (14896, 18872), (16513, 17024)]