208754884

素因数分解:

$2^2\times {\mathrm{13}}^2\times {\mathrm{308809}}^1$

素因数の和:308839

約数の個数: 18

約数和(自身を含む): 395585610

約数和(自身を除く): 186830726

約数列:

[1, 2, 4, 13, 26, 52, 169, 338, 676, 308809, 617618, 1235236, 4014517, 8029034, 16058068, 52188721, 104377442, 208754884]

約数ペア:

[(1, 208754884), (2, 104377442), (4, 52188721), (13, 16058068), (26, 8029034), (52, 4014517), (169, 1235236), (338, 617618), (676, 308809)]