204911120

素因数分解:

$2^4\times 5^1\times {\mathrm{2561389}}^1$

素因数の和:2561402

約数の個数: 20

約数和(自身を含む): 476418540

約数和(自身を除く): 271507420

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 2561389, 5122778, 10245556, 12806945, 20491112, 25613890, 40982224, 51227780, 102455560, 204911120]

約数ペア:

[(1, 204911120), (2, 102455560), (4, 51227780), (5, 40982224), (8, 25613890), (10, 20491112), (16, 12806945), (20, 10245556), (40, 5122778), (80, 2561389)]