505422080

素因数分解:

$2^8\times 5^1\times {\mathrm{394861}}^1$

素因数の和:394882

約数の個数: 36

約数和(自身を含む): 1210646892

約数和(自身を除く): 705224812

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 640, 1280, 394861, 789722, 1579444, 1974305, 3158888, 3948610, 6317776, 7897220, 12635552, 15794440, 25271104, 31588880, 50542208, 63177760, 101084416, 126355520, 252711040, 505422080]

約数ペア:

[(1, 505422080), (2, 252711040), (4, 126355520), (5, 101084416), (8, 63177760), (10, 50542208), (16, 31588880), (20, 25271104), (32, 15794440), (40, 12635552), (64, 7897220), (80, 6317776), (128, 3948610), (160, 3158888), (256, 1974305), (320, 1579444), (640, 789722), (1280, 394861)]