19788949504

素因数分解:

$2^{11}\times {\mathrm{43}}^1\times {\mathrm{224711}}^1$

素因数の和:224776

約数の個数: 48

約数和(自身を含む): 40488608160

約数和(自身を除く): 20699658656

約数列:

[1, 2, 4, 8, 16, 32, 43, 64, 86, 128, 172, 256, 344, 512, 688, 1024, 1376, 2048, 2752, 5504, 11008, 22016, 44032, 88064, 224711, 449422, 898844, 1797688, 3595376, 7190752, 9662573, 14381504, 19325146, 28763008, 38650292, 57526016, 77300584, 115052032, 154601168, 230104064, 309202336, 460208128, 618404672, 1236809344, 2473618688, 4947237376, 9894474752, 19788949504]

約数ペア:

[(1, 19788949504), (2, 9894474752), (4, 4947237376), (8, 2473618688), (16, 1236809344), (32, 618404672), (43, 460208128), (64, 309202336), (86, 230104064), (128, 154601168), (172, 115052032), (256, 77300584), (344, 57526016), (512, 38650292), (688, 28763008), (1024, 19325146), (1376, 14381504), (2048, 9662573), (2752, 7190752), (5504, 3595376), (11008, 1797688), (22016, 898844), (44032, 449422), (88064, 224711)]