211330880

素因数分解:

$2^6\times 5^1\times {\mathrm{660409}}^1$

素因数の和:660426

約数の個数: 28

約数和(自身を含む): 503232420

約数和(自身を除く): 291901540

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 660409, 1320818, 2641636, 3302045, 5283272, 6604090, 10566544, 13208180, 21133088, 26416360, 42266176, 52832720, 105665440, 211330880]

約数ペア:

[(1, 211330880), (2, 105665440), (4, 52832720), (5, 42266176), (8, 26416360), (10, 21133088), (16, 13208180), (20, 10566544), (32, 6604090), (40, 5283272), (64, 3302045), (80, 2641636), (160, 1320818), (320, 660409)]