20456912

素因数分解:

$2^4\times 7^2\times {\mathrm{97}}^1\times {\mathrm{269}}^1$

素因数の和:388

約数の個数: 60

約数和(自身を含む): 46754820

約数和(自身を除く): 26297908

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 49, 56, 97, 98, 112, 194, 196, 269, 388, 392, 538, 679, 776, 784, 1076, 1358, 1552, 1883, 2152, 2716, 3766, 4304, 4753, 5432, 7532, 9506, 10864, 13181, 15064, 19012, 26093, 26362, 30128, 38024, 52186, 52724, 76048, 104372, 105448, 182651, 208744, 210896, 365302, 417488, 730604, 1278557, 1461208, 2557114, 2922416, 5114228, 10228456, 20456912]

約数ペア:

[(1, 20456912), (2, 10228456), (4, 5114228), (7, 2922416), (8, 2557114), (14, 1461208), (16, 1278557), (28, 730604), (49, 417488), (56, 365302), (97, 210896), (98, 208744), (112, 182651), (194, 105448), (196, 104372), (269, 76048), (388, 52724), (392, 52186), (538, 38024), (679, 30128), (776, 26362), (784, 26093), (1076, 19012), (1358, 15064), (1552, 13181), (1883, 10864), (2152, 9506), (2716, 7532), (3766, 5432), (4304, 4753)]