64686448

素因数分解:

$2^4\times {\mathrm{43}}^1\times {\mathrm{167}}^1\times {\mathrm{563}}^1$

素因数の和:781

約数の個数: 40

約数和(自身を含む): 129241728

約数和(自身を除く): 64555280

約数列:

[1, 2, 4, 8, 16, 43, 86, 167, 172, 334, 344, 563, 668, 688, 1126, 1336, 2252, 2672, 4504, 7181, 9008, 14362, 24209, 28724, 48418, 57448, 94021, 96836, 114896, 188042, 193672, 376084, 387344, 752168, 1504336, 4042903, 8085806, 16171612, 32343224, 64686448]

約数ペア:

[(1, 64686448), (2, 32343224), (4, 16171612), (8, 8085806), (16, 4042903), (43, 1504336), (86, 752168), (167, 387344), (172, 376084), (334, 193672), (344, 188042), (563, 114896), (668, 96836), (688, 94021), (1126, 57448), (1336, 48418), (2252, 28724), (2672, 24209), (4504, 14362), (7181, 9008)]