257890246

素因数分解:

$2^1\times {\mathrm{41}}^1\times {\mathrm{1181}}^1\times {\mathrm{2663}}^1$

素因数の和:3887

約数の個数: 16

約数和(自身を含む): 396754848

約数和(自身を除く): 138864602

約数列:

[1, 2, 41, 82, 1181, 2362, 2663, 5326, 48421, 96842, 109183, 218366, 3145003, 6290006, 128945123, 257890246]

約数ペア:

[(1, 257890246), (2, 128945123), (41, 6290006), (82, 3145003), (1181, 218366), (2362, 109183), (2663, 96842), (5326, 48421)]