640430336

素因数分解:

$2^8\times 7^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{743}}^1$

素因数の和:816

約数の個数: 144

約数和(自身を含む): 1618063104

約数和(自身を除く): 977632768

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 32, 37, 52, 56, 64, 74, 91, 104, 112, 128, 148, 182, 208, 224, 256, 259, 296, 364, 416, 448, 481, 518, 592, 728, 743, 832, 896, 962, 1036, 1184, 1456, 1486, 1664, 1792, 1924, 2072, 2368, 2912, 2972, 3328, 3367, 3848, 4144, 4736, 5201, 5824, 5944, 6734, 7696, 8288, 9472, 9659, 10402, 11648, 11888, 13468, 15392, 16576, 19318, 20804, 23296, 23776, 26936, 27491, 30784, 33152, 38636, 41608, 47552, 53872, 54982, 61568, 66304, 67613, 77272, 83216, 95104, 107744, 109964, 123136, 135226, 154544, 166432, 190208, 192437, 215488, 219928, 270452, 309088, 332864, 357383, 384874, 430976, 439856, 540904, 618176, 665728, 714766, 769748, 861952, 879712, 1081808, 1236352, 1331456, 1429532, 1539496, 1759424, 2163616, 2472704, 2501681, 2859064, 3078992, 3518848, 4327232, 5003362, 5718128, 6157984, 7037696, 8654464, 10006724, 11436256, 12315968, 17308928, 20013448, 22872512, 24631936, 40026896, 45745024, 49263872, 80053792, 91490048, 160107584, 320215168, 640430336]

約数ペア:

[(1, 640430336), (2, 320215168), (4, 160107584), (7, 91490048), (8, 80053792), (13, 49263872), (14, 45745024), (16, 40026896), (26, 24631936), (28, 22872512), (32, 20013448), (37, 17308928), (52, 12315968), (56, 11436256), (64, 10006724), (74, 8654464), (91, 7037696), (104, 6157984), (112, 5718128), (128, 5003362), (148, 4327232), (182, 3518848), (208, 3078992), (224, 2859064), (256, 2501681), (259, 2472704), (296, 2163616), (364, 1759424), (416, 1539496), (448, 1429532), (481, 1331456), (518, 1236352), (592, 1081808), (728, 879712), (743, 861952), (832, 769748), (896, 714766), (962, 665728), (1036, 618176), (1184, 540904), (1456, 439856), (1486, 430976), (1664, 384874), (1792, 357383), (1924, 332864), (2072, 309088), (2368, 270452), (2912, 219928), (2972, 215488), (3328, 192437), (3367, 190208), (3848, 166432), (4144, 154544), (4736, 135226), (5201, 123136), (5824, 109964), (5944, 107744), (6734, 95104), (7696, 83216), (8288, 77272), (9472, 67613), (9659, 66304), (10402, 61568), (11648, 54982), (11888, 53872), (13468, 47552), (15392, 41608), (16576, 38636), (19318, 33152), (20804, 30784), (23296, 27491), (23776, 26936)]