20081240048

素因数分解:

$2^4\times {\mathrm{79}}^1\times {\mathrm{887}}^1\times {\mathrm{17911}}^1$

素因数の和:18885

約数の個数: 40

約数和(自身を含む): 39446522880

約数和(自身を除く): 19365282832

約数列:

[1, 2, 4, 8, 16, 79, 158, 316, 632, 887, 1264, 1774, 3548, 7096, 14192, 17911, 35822, 70073, 71644, 140146, 143288, 280292, 286576, 560584, 1121168, 1414969, 2829938, 5659876, 11319752, 15887057, 22639504, 31774114, 63548228, 127096456, 254192912, 1255077503, 2510155006, 5020310012, 10040620024, 20081240048]

約数ペア:

[(1, 20081240048), (2, 10040620024), (4, 5020310012), (8, 2510155006), (16, 1255077503), (79, 254192912), (158, 127096456), (316, 63548228), (632, 31774114), (887, 22639504), (1264, 15887057), (1774, 11319752), (3548, 5659876), (7096, 2829938), (14192, 1414969), (17911, 1121168), (35822, 560584), (70073, 286576), (71644, 280292), (140146, 143288)]