220167568

素因数分解:

$2^4\times {\mathrm{43}}^1\times {\mathrm{320011}}^1$

素因数の和:320062

約数の個数: 20

約数和(自身を含む): 436496368

約数和(自身を除く): 216328800

約数列:

[1, 2, 4, 8, 16, 43, 86, 172, 344, 688, 320011, 640022, 1280044, 2560088, 5120176, 13760473, 27520946, 55041892, 110083784, 220167568]

約数ペア:

[(1, 220167568), (2, 110083784), (4, 55041892), (8, 27520946), (16, 13760473), (43, 5120176), (86, 2560088), (172, 1280044), (344, 640022), (688, 320011)]