1640377545

素因数分解:

$3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{2543221}}^1$

素因数の和:2543272

約数の個数: 16

約数和(自身を含む): 2685642432

約数和(自身を除く): 1045264887

約数列:

[1, 3, 5, 15, 43, 129, 215, 645, 2543221, 7629663, 12716105, 38148315, 109358503, 328075509, 546792515, 1640377545]

約数ペア:

[(1, 1640377545), (3, 546792515), (5, 328075509), (15, 109358503), (43, 38148315), (129, 12716105), (215, 7629663), (645, 2543221)]