28165120

素因数分解:

$2^{10}\times 5^1\times {\mathrm{5501}}^1$

素因数の和:5526

約数の個数: 44

約数和(自身を含む): 67575564

約数和(自身を除く): 39410444

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 512, 640, 1024, 1280, 2560, 5120, 5501, 11002, 22004, 27505, 44008, 55010, 88016, 110020, 176032, 220040, 352064, 440080, 704128, 880160, 1408256, 1760320, 2816512, 3520640, 5633024, 7041280, 14082560, 28165120]

約数ペア:

[(1, 28165120), (2, 14082560), (4, 7041280), (5, 5633024), (8, 3520640), (10, 2816512), (16, 1760320), (20, 1408256), (32, 880160), (40, 704128), (64, 440080), (80, 352064), (128, 220040), (160, 176032), (256, 110020), (320, 88016), (512, 55010), (640, 44008), (1024, 27505), (1280, 22004), (2560, 11002), (5120, 5501)]