218739968

素因数分解:

$2^8\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{641}}^1$

素因数の和:731

約数の個数: 72

約数和(自身を含む): 461911296

約数和(自身を除く): 243171328

約数列:

[1, 2, 4, 8, 16, 31, 32, 43, 62, 64, 86, 124, 128, 172, 248, 256, 344, 496, 641, 688, 992, 1282, 1333, 1376, 1984, 2564, 2666, 2752, 3968, 5128, 5332, 5504, 7936, 10256, 10664, 11008, 19871, 20512, 21328, 27563, 39742, 41024, 42656, 55126, 79484, 82048, 85312, 110252, 158968, 164096, 170624, 220504, 317936, 341248, 441008, 635872, 854453, 882016, 1271744, 1708906, 1764032, 2543488, 3417812, 3528064, 5086976, 6835624, 7056128, 13671248, 27342496, 54684992, 109369984, 218739968]

約数ペア:

[(1, 218739968), (2, 109369984), (4, 54684992), (8, 27342496), (16, 13671248), (31, 7056128), (32, 6835624), (43, 5086976), (62, 3528064), (64, 3417812), (86, 2543488), (124, 1764032), (128, 1708906), (172, 1271744), (248, 882016), (256, 854453), (344, 635872), (496, 441008), (641, 341248), (688, 317936), (992, 220504), (1282, 170624), (1333, 164096), (1376, 158968), (1984, 110252), (2564, 85312), (2666, 82048), (2752, 79484), (3968, 55126), (5128, 42656), (5332, 41024), (5504, 39742), (7936, 27563), (10256, 21328), (10664, 20512), (11008, 19871)]