487489964

素因数分解:

$2^2\times {\mathrm{13}}^2\times {\mathrm{721139}}^1$

素因数の和:721169

約数の個数: 18

約数和(自身を含む): 923780340

約数和(自身を除く): 436290376

約数列:

[1, 2, 4, 13, 26, 52, 169, 338, 676, 721139, 1442278, 2884556, 9374807, 18749614, 37499228, 121872491, 243744982, 487489964]

約数ペア:

[(1, 487489964), (2, 243744982), (4, 121872491), (13, 37499228), (26, 18749614), (52, 9374807), (169, 2884556), (338, 1442278), (676, 721139)]