28726720568

素因数分解:

$2^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{107}}^1\times {\mathrm{368783}}^1$

素因数の和:368916

約数の個数: 64

約数和(自身を含む): 66912168960

約数和(自身を除く): 38185448392

約数列:

[1, 2, 4, 7, 8, 13, 14, 26, 28, 52, 56, 91, 104, 107, 182, 214, 364, 428, 728, 749, 856, 1391, 1498, 2782, 2996, 5564, 5992, 9737, 11128, 19474, 38948, 77896, 368783, 737566, 1475132, 2581481, 2950264, 4794179, 5162962, 9588358, 10325924, 19176716, 20651848, 33559253, 38353432, 39459781, 67118506, 78919562, 134237012, 157839124, 268474024, 276218467, 315678248, 512977153, 552436934, 1025954306, 1104873868, 2051908612, 2209747736, 3590840071, 4103817224, 7181680142, 14363360284, 28726720568]

約数ペア:

[(1, 28726720568), (2, 14363360284), (4, 7181680142), (7, 4103817224), (8, 3590840071), (13, 2209747736), (14, 2051908612), (26, 1104873868), (28, 1025954306), (52, 552436934), (56, 512977153), (91, 315678248), (104, 276218467), (107, 268474024), (182, 157839124), (214, 134237012), (364, 78919562), (428, 67118506), (728, 39459781), (749, 38353432), (856, 33559253), (1391, 20651848), (1498, 19176716), (2782, 10325924), (2996, 9588358), (5564, 5162962), (5992, 4794179), (9737, 2950264), (11128, 2581481), (19474, 1475132), (38948, 737566), (77896, 368783)]