80917876

素因数分解:

$2^2\times {\mathrm{13}}^2\times {\mathrm{119701}}^1$

素因数の和:119731

約数の個数: 18

約数和(自身を含む): 153338262

約数和(自身を除く): 72420386

約数列:

[1, 2, 4, 13, 26, 52, 169, 338, 676, 119701, 239402, 478804, 1556113, 3112226, 6224452, 20229469, 40458938, 80917876]

約数ペア:

[(1, 80917876), (2, 40458938), (4, 20229469), (13, 6224452), (26, 3112226), (52, 1556113), (169, 478804), (338, 239402), (676, 119701)]