20975616

素因数分解:

$2^{12}\times 3^2\times {\mathrm{569}}^1$

素因数の和:599

約数の個数: 78

約数和(自身を含む): 60695310

約数和(自身を除く): 39719694

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 32, 36, 48, 64, 72, 96, 128, 144, 192, 256, 288, 384, 512, 569, 576, 768, 1024, 1138, 1152, 1536, 1707, 2048, 2276, 2304, 3072, 3414, 4096, 4552, 4608, 5121, 6144, 6828, 9104, 9216, 10242, 12288, 13656, 18208, 18432, 20484, 27312, 36416, 36864, 40968, 54624, 72832, 81936, 109248, 145664, 163872, 218496, 291328, 327744, 436992, 582656, 655488, 873984, 1165312, 1310976, 1747968, 2330624, 2621952, 3495936, 5243904, 6991872, 10487808, 20975616]

約数ペア:

[(1, 20975616), (2, 10487808), (3, 6991872), (4, 5243904), (6, 3495936), (8, 2621952), (9, 2330624), (12, 1747968), (16, 1310976), (18, 1165312), (24, 873984), (32, 655488), (36, 582656), (48, 436992), (64, 327744), (72, 291328), (96, 218496), (128, 163872), (144, 145664), (192, 109248), (256, 81936), (288, 72832), (384, 54624), (512, 40968), (569, 36864), (576, 36416), (768, 27312), (1024, 20484), (1138, 18432), (1152, 18208), (1536, 13656), (1707, 12288), (2048, 10242), (2276, 9216), (2304, 9104), (3072, 6828), (3414, 6144), (4096, 5121), (4552, 4608)]