25361920

素因数分解:

$2^9\times 5^1\times {\mathrm{9907}}^1$

素因数の和:9930

約数の個数: 40

約数和(自身を含む): 60815304

約数和(自身を除く): 35453384

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 512, 640, 1280, 2560, 9907, 19814, 39628, 49535, 79256, 99070, 158512, 198140, 317024, 396280, 634048, 792560, 1268096, 1585120, 2536192, 3170240, 5072384, 6340480, 12680960, 25361920]

約数ペア:

[(1, 25361920), (2, 12680960), (4, 6340480), (5, 5072384), (8, 3170240), (10, 2536192), (16, 1585120), (20, 1268096), (32, 792560), (40, 634048), (64, 396280), (80, 317024), (128, 198140), (160, 158512), (256, 99070), (320, 79256), (512, 49535), (640, 39628), (1280, 19814), (2560, 9907)]