12680960

素因数分解:

$2^8\times 5^1\times {\mathrm{9907}}^1$

素因数の和:9928

約数の個数: 36

約数和(自身を含む): 30377928

約数和(自身を除く): 17696968

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 640, 1280, 9907, 19814, 39628, 49535, 79256, 99070, 158512, 198140, 317024, 396280, 634048, 792560, 1268096, 1585120, 2536192, 3170240, 6340480, 12680960]

約数ペア:

[(1, 12680960), (2, 6340480), (4, 3170240), (5, 2536192), (8, 1585120), (10, 1268096), (16, 792560), (20, 634048), (32, 396280), (40, 317024), (64, 198140), (80, 158512), (128, 99070), (160, 79256), (256, 49535), (320, 39628), (640, 19814), (1280, 9907)]