20494936

素因数分解:

$2^3\times 7^4\times {\mathrm{11}}^1\times {\mathrm{97}}^1$

素因数の和:142

約数の個数: 80

約数和(自身を含む): 49409640

約数和(自身を除く): 28914704

約数列:

[1, 2, 4, 7, 8, 11, 14, 22, 28, 44, 49, 56, 77, 88, 97, 98, 154, 194, 196, 308, 343, 388, 392, 539, 616, 679, 686, 776, 1067, 1078, 1358, 1372, 2134, 2156, 2401, 2716, 2744, 3773, 4268, 4312, 4753, 4802, 5432, 7469, 7546, 8536, 9506, 9604, 14938, 15092, 19012, 19208, 26411, 29876, 30184, 33271, 38024, 52283, 52822, 59752, 66542, 104566, 105644, 133084, 209132, 211288, 232897, 266168, 365981, 418264, 465794, 731962, 931588, 1463924, 1863176, 2561867, 2927848, 5123734, 10247468, 20494936]

約数ペア:

[(1, 20494936), (2, 10247468), (4, 5123734), (7, 2927848), (8, 2561867), (11, 1863176), (14, 1463924), (22, 931588), (28, 731962), (44, 465794), (49, 418264), (56, 365981), (77, 266168), (88, 232897), (97, 211288), (98, 209132), (154, 133084), (194, 105644), (196, 104566), (308, 66542), (343, 59752), (388, 52822), (392, 52283), (539, 38024), (616, 33271), (679, 30184), (686, 29876), (776, 26411), (1067, 19208), (1078, 19012), (1358, 15092), (1372, 14938), (2134, 9604), (2156, 9506), (2401, 8536), (2716, 7546), (2744, 7469), (3773, 5432), (4268, 4802), (4312, 4753)]