21037515280

素因数分解:

$2^4\times 5^1\times {\mathrm{262968941}}^1$

素因数の和:262968954

約数の個数: 20

約数和(自身を含む): 48912223212

約数和(自身を除く): 27874707932

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 262968941, 525937882, 1051875764, 1314844705, 2103751528, 2629689410, 4207503056, 5259378820, 10518757640, 21037515280]

約数ペア:

[(1, 21037515280), (2, 10518757640), (4, 5259378820), (5, 4207503056), (8, 2629689410), (10, 2103751528), (16, 1314844705), (20, 1051875764), (40, 525937882), (80, 262968941)]