1280538818

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{693683}}^1$

素因数の和:693769

約数の個数: 16

約数和(自身を含む): 2097700416

約数和(自身を除く): 817161598

約数列:

[1, 2, 13, 26, 71, 142, 923, 1846, 693683, 1387366, 9017879, 18035758, 49251493, 98502986, 640269409, 1280538818]

約数ペア:

[(1, 1280538818), (2, 640269409), (13, 98502986), (26, 49251493), (71, 18035758), (142, 9017879), (923, 1387366), (1846, 693683)]