211328960

素因数分解:

$2^6\times 5^1\times {\mathrm{660403}}^1$

素因数の和:660420

約数の個数: 28

約数和(自身を含む): 503227848

約数和(自身を除く): 291898888

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 660403, 1320806, 2641612, 3302015, 5283224, 6604030, 10566448, 13208060, 21132896, 26416120, 42265792, 52832240, 105664480, 211328960]

約数ペア:

[(1, 211328960), (2, 105664480), (4, 52832240), (5, 42265792), (8, 26416120), (10, 21132896), (16, 13208060), (20, 10566448), (32, 6604030), (40, 5283224), (64, 3302015), (80, 2641612), (160, 1320806), (320, 660403)]