205320890

素因数分解:

$2^1\times 5^1\times {\mathrm{521}}^1\times {\mathrm{39409}}^1$

素因数の和:39937

約数の個数: 16

約数和(自身を含む): 370296360

約数和(自身を除く): 164975470

約数列:

[1, 2, 5, 10, 521, 1042, 2605, 5210, 39409, 78818, 197045, 394090, 20532089, 41064178, 102660445, 205320890]

約数ペア:

[(1, 205320890), (2, 102660445), (5, 41064178), (10, 20532089), (521, 394090), (1042, 197045), (2605, 78818), (5210, 39409)]