20835380

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{25409}}^1$

素因数の和:25459

約数の個数: 24

約数和(自身を含む): 44823240

約数和(自身を除く): 23987860

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 25409, 50818, 101636, 127045, 254090, 508180, 1041769, 2083538, 4167076, 5208845, 10417690, 20835380]

約数ペア:

[(1, 20835380), (2, 10417690), (4, 5208845), (5, 4167076), (10, 2083538), (20, 1041769), (41, 508180), (82, 254090), (164, 127045), (205, 101636), (410, 50818), (820, 25409)]