19708120

素因数分解:

$2^3\times 5^1\times {\mathrm{283}}^1\times {\mathrm{1741}}^1$

素因数の和:2035

約数の個数: 32

約数和(自身を含む): 44525520

約数和(自身を除く): 24817400

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 283, 566, 1132, 1415, 1741, 2264, 2830, 3482, 5660, 6964, 8705, 11320, 13928, 17410, 34820, 69640, 492703, 985406, 1970812, 2463515, 3941624, 4927030, 9854060, 19708120]

約数ペア:

[(1, 19708120), (2, 9854060), (4, 4927030), (5, 3941624), (8, 2463515), (10, 1970812), (20, 985406), (40, 492703), (283, 69640), (566, 34820), (1132, 17410), (1415, 13928), (1741, 11320), (2264, 8705), (2830, 6964), (3482, 5660)]