28641284

素因数分解:

$2^2\times 7^2\times {\mathrm{19}}^1\times {\mathrm{7691}}^1$

素因数の和:7728

約数の個数: 36

約数和(自身を含む): 61382160

約数和(自身を除く): 32740876

約数列:

[1, 2, 4, 7, 14, 19, 28, 38, 49, 76, 98, 133, 196, 266, 532, 931, 1862, 3724, 7691, 15382, 30764, 53837, 107674, 146129, 215348, 292258, 376859, 584516, 753718, 1022903, 1507436, 2045806, 4091612, 7160321, 14320642, 28641284]

約数ペア:

[(1, 28641284), (2, 14320642), (4, 7160321), (7, 4091612), (14, 2045806), (19, 1507436), (28, 1022903), (38, 753718), (49, 584516), (76, 376859), (98, 292258), (133, 215348), (196, 146129), (266, 107674), (532, 53837), (931, 30764), (1862, 15382), (3724, 7691)]