129991888

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{624961}}^1$

素因数の和:624982

約数の個数: 20

約数和(自身を含む): 271233508

約数和(自身を除く): 141241620

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 624961, 1249922, 2499844, 4999688, 8124493, 9999376, 16248986, 32497972, 64995944, 129991888]

約数ペア:

[(1, 129991888), (2, 64995944), (4, 32497972), (8, 16248986), (13, 9999376), (16, 8124493), (26, 4999688), (52, 2499844), (104, 1249922), (208, 624961)]