1286428

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{13}}^2\times {\mathrm{173}}^1$

素因数の和:214

約数の個数: 36

約数和(自身を含む): 2674728

約数和(自身を除く): 1388300

約数列:

[1, 2, 4, 11, 13, 22, 26, 44, 52, 143, 169, 173, 286, 338, 346, 572, 676, 692, 1859, 1903, 2249, 3718, 3806, 4498, 7436, 7612, 8996, 24739, 29237, 49478, 58474, 98956, 116948, 321607, 643214, 1286428]

約数ペア:

[(1, 1286428), (2, 643214), (4, 321607), (11, 116948), (13, 98956), (22, 58474), (26, 49478), (44, 29237), (52, 24739), (143, 8996), (169, 7612), (173, 7436), (286, 4498), (338, 3806), (346, 3718), (572, 2249), (676, 1903), (692, 1859)]