399998976

素因数分解:

$2^{15}\times 3^1\times {\mathrm{13}}^1\times {\mathrm{313}}^1$

素因数の和:359

約数の個数: 128

約数和(自身を含む): 1152367440

約数和(自身を除く): 752368464

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 16, 24, 26, 32, 39, 48, 52, 64, 78, 96, 104, 128, 156, 192, 208, 256, 312, 313, 384, 416, 512, 624, 626, 768, 832, 939, 1024, 1248, 1252, 1536, 1664, 1878, 2048, 2496, 2504, 3072, 3328, 3756, 4069, 4096, 4992, 5008, 6144, 6656, 7512, 8138, 8192, 9984, 10016, 12207, 12288, 13312, 15024, 16276, 16384, 19968, 20032, 24414, 24576, 26624, 30048, 32552, 32768, 39936, 40064, 48828, 49152, 53248, 60096, 65104, 79872, 80128, 97656, 98304, 106496, 120192, 130208, 159744, 160256, 195312, 212992, 240384, 260416, 319488, 320512, 390624, 425984, 480768, 520832, 638976, 641024, 781248, 961536, 1041664, 1277952, 1282048, 1562496, 1923072, 2083328, 2564096, 3124992, 3846144, 4166656, 5128192, 6249984, 7692288, 8333312, 10256384, 12499968, 15384576, 16666624, 24999936, 30769152, 33333248, 49999872, 66666496, 99999744, 133332992, 199999488, 399998976]

約数ペア:

[(1, 399998976), (2, 199999488), (3, 133332992), (4, 99999744), (6, 66666496), (8, 49999872), (12, 33333248), (13, 30769152), (16, 24999936), (24, 16666624), (26, 15384576), (32, 12499968), (39, 10256384), (48, 8333312), (52, 7692288), (64, 6249984), (78, 5128192), (96, 4166656), (104, 3846144), (128, 3124992), (156, 2564096), (192, 2083328), (208, 1923072), (256, 1562496), (312, 1282048), (313, 1277952), (384, 1041664), (416, 961536), (512, 781248), (624, 641024), (626, 638976), (768, 520832), (832, 480768), (939, 425984), (1024, 390624), (1248, 320512), (1252, 319488), (1536, 260416), (1664, 240384), (1878, 212992), (2048, 195312), (2496, 160256), (2504, 159744), (3072, 130208), (3328, 120192), (3756, 106496), (4069, 98304), (4096, 97656), (4992, 80128), (5008, 79872), (6144, 65104), (6656, 60096), (7512, 53248), (8138, 49152), (8192, 48828), (9984, 40064), (10016, 39936), (12207, 32768), (12288, 32552), (13312, 30048), (15024, 26624), (16276, 24576), (16384, 24414), (19968, 20032)]