28561280

素因数分解:

$2^7\times 5^1\times {\mathrm{11}}^1\times {\mathrm{4057}}^1$

素因数の和:4087

約数の個数: 64

約数和(自身を含む): 74504880

約数和(自身を除く): 45943600

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 55, 64, 80, 88, 110, 128, 160, 176, 220, 320, 352, 440, 640, 704, 880, 1408, 1760, 3520, 4057, 7040, 8114, 16228, 20285, 32456, 40570, 44627, 64912, 81140, 89254, 129824, 162280, 178508, 223135, 259648, 324560, 357016, 446270, 519296, 649120, 714032, 892540, 1298240, 1428064, 1785080, 2596480, 2856128, 3570160, 5712256, 7140320, 14280640, 28561280]

約数ペア:

[(1, 28561280), (2, 14280640), (4, 7140320), (5, 5712256), (8, 3570160), (10, 2856128), (11, 2596480), (16, 1785080), (20, 1428064), (22, 1298240), (32, 892540), (40, 714032), (44, 649120), (55, 519296), (64, 446270), (80, 357016), (88, 324560), (110, 259648), (128, 223135), (160, 178508), (176, 162280), (220, 129824), (320, 89254), (352, 81140), (440, 64912), (640, 44627), (704, 40570), (880, 32456), (1408, 20285), (1760, 16228), (3520, 8114), (4057, 7040)]