1320735890

素因数分解:

$2^1\times 5^1\times {\mathrm{439}}^1\times {\mathrm{300851}}^1$

素因数の和:301297

約数の個数: 16

約数和(自身を含む): 2382747840

約数和(自身を除く): 1062011950

約数列:

[1, 2, 5, 10, 439, 878, 2195, 4390, 300851, 601702, 1504255, 3008510, 132073589, 264147178, 660367945, 1320735890]

約数ペア:

[(1, 1320735890), (2, 660367945), (5, 264147178), (10, 132073589), (439, 3008510), (878, 1504255), (2195, 601702), (4390, 300851)]