254990080

素因数分解:

$2^8\times 5^1\times {\mathrm{199211}}^1$

素因数の和:199232

約数の個数: 36

約数和(自身を含む): 610783992

約数和(自身を除く): 355793912

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 640, 1280, 199211, 398422, 796844, 996055, 1593688, 1992110, 3187376, 3984220, 6374752, 7968440, 12749504, 15936880, 25499008, 31873760, 50998016, 63747520, 127495040, 254990080]

約数ペア:

[(1, 254990080), (2, 127495040), (4, 63747520), (5, 50998016), (8, 31873760), (10, 25499008), (16, 15936880), (20, 12749504), (32, 7968440), (40, 6374752), (64, 3984220), (80, 3187376), (128, 1992110), (160, 1593688), (256, 996055), (320, 796844), (640, 398422), (1280, 199211)]