1272221565

素因数分解:

$3^1\times 5^1\times {\mathrm{131}}^1\times {\mathrm{647441}}^1$

素因数の和:647580

約数の個数: 16

約数和(自身を含む): 2051096256

約数和(自身を除く): 778874691

約数列:

[1, 3, 5, 15, 131, 393, 655, 1965, 647441, 1942323, 3237205, 9711615, 84814771, 254444313, 424073855, 1272221565]

約数ペア:

[(1, 1272221565), (3, 424073855), (5, 254444313), (15, 84814771), (131, 9711615), (393, 3237205), (655, 1942323), (1965, 647441)]