426556

素因数分解:

$2^2\times {\mathrm{13}}^2\times {\mathrm{631}}^1$

素因数の和:661

約数の個数: 18

約数和(自身を含む): 809592

約数和(自身を除く): 383036

約数列:

[1, 2, 4, 13, 26, 52, 169, 338, 631, 676, 1262, 2524, 8203, 16406, 32812, 106639, 213278, 426556]

約数ペア:

[(1, 426556), (2, 213278), (4, 106639), (13, 32812), (26, 16406), (52, 8203), (169, 2524), (338, 1262), (631, 676)]