20805213208

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{1171}}^1\times {\mathrm{170837}}^1$

素因数の和:172027

約数の個数: 32

約数和(自身を含む): 42046648560

約数和(自身を除く): 21241435352

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 1171, 2342, 4684, 9368, 15223, 30446, 60892, 121784, 170837, 341674, 683348, 1366696, 2220881, 4441762, 8883524, 17767048, 200050127, 400100254, 800200508, 1600401016, 2600651651, 5201303302, 10402606604, 20805213208]

約数ペア:

[(1, 20805213208), (2, 10402606604), (4, 5201303302), (8, 2600651651), (13, 1600401016), (26, 800200508), (52, 400100254), (104, 200050127), (1171, 17767048), (2342, 8883524), (4684, 4441762), (9368, 2220881), (15223, 1366696), (30446, 683348), (60892, 341674), (121784, 170837)]