20043088

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{173}}^1\times {\mathrm{557}}^1$

素因数の和:751

約数の個数: 40

約数和(自身を含む): 42137928

約数和(自身を除く): 22094840

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 173, 208, 346, 557, 692, 1114, 1384, 2228, 2249, 2768, 4456, 4498, 7241, 8912, 8996, 14482, 17992, 28964, 35984, 57928, 96361, 115856, 192722, 385444, 770888, 1252693, 1541776, 2505386, 5010772, 10021544, 20043088]

約数ペア:

[(1, 20043088), (2, 10021544), (4, 5010772), (8, 2505386), (13, 1541776), (16, 1252693), (26, 770888), (52, 385444), (104, 192722), (173, 115856), (208, 96361), (346, 57928), (557, 35984), (692, 28964), (1114, 17992), (1384, 14482), (2228, 8996), (2249, 8912), (2768, 7241), (4456, 4498)]