1978288

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{9511}}^1$

素因数の和:9532

約数の個数: 20

約数和(自身を含む): 4128208

約数和(自身を除く): 2149920

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 9511, 19022, 38044, 76088, 123643, 152176, 247286, 494572, 989144, 1978288]

約数ペア:

[(1, 1978288), (2, 989144), (4, 494572), (8, 247286), (13, 152176), (16, 123643), (26, 76088), (52, 38044), (104, 19022), (208, 9511)]