66908140

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{257339}}^1$

素因数の和:257361

約数の個数: 24

約数和(自身を含む): 151315920

約数和(自身を除く): 84407780

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 257339, 514678, 1029356, 1286695, 2573390, 3345407, 5146780, 6690814, 13381628, 16727035, 33454070, 66908140]

約数ペア:

[(1, 66908140), (2, 33454070), (4, 16727035), (5, 13381628), (10, 6690814), (13, 5146780), (20, 3345407), (26, 2573390), (52, 1286695), (65, 1029356), (130, 514678), (260, 257339)]