20688007796

素因数分解:

$2^2\times {\mathrm{41}}^1\times {\mathrm{197}}^1\times {\mathrm{241}}^1\times {\mathrm{2657}}^1$

素因数の和:3140

約数の個数: 48

約数和(自身を含む): 37444054032

約数和(自身を除く): 16756046236

約数列:

[1, 2, 4, 41, 82, 164, 197, 241, 394, 482, 788, 964, 2657, 5314, 8077, 9881, 10628, 16154, 19762, 32308, 39524, 47477, 94954, 108937, 189908, 217874, 435748, 523429, 640337, 1046858, 1280674, 1946557, 2093716, 2561348, 3893114, 7786228, 21460589, 26253817, 42921178, 52507634, 85842356, 105015268, 126146389, 252292778, 504585556, 5172001949, 10344003898, 20688007796]

約数ペア:

[(1, 20688007796), (2, 10344003898), (4, 5172001949), (41, 504585556), (82, 252292778), (164, 126146389), (197, 105015268), (241, 85842356), (394, 52507634), (482, 42921178), (788, 26253817), (964, 21460589), (2657, 7786228), (5314, 3893114), (8077, 2561348), (9881, 2093716), (10628, 1946557), (16154, 1280674), (19762, 1046858), (32308, 640337), (39524, 523429), (47477, 435748), (94954, 217874), (108937, 189908)]