1640252415

素因数分解:

$3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{2543027}}^1$

素因数の和:2543078

約数の個数: 16

約数和(自身を含む): 2685437568

約数和(自身を除く): 1045185153

約数列:

[1, 3, 5, 15, 43, 129, 215, 645, 2543027, 7629081, 12715135, 38145405, 109350161, 328050483, 546750805, 1640252415]

約数ペア:

[(1, 1640252415), (3, 546750805), (5, 328050483), (15, 109350161), (43, 38145405), (129, 12715135), (215, 7629081), (645, 2543027)]