1280491090

素因数分解:

$2^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{3123149}}^1$

素因数の和:3123197

約数の個数: 16

約数和(自身を含む): 2361101400

約数和(自身を除く): 1080610310

約数列:

[1, 2, 5, 10, 41, 82, 205, 410, 3123149, 6246298, 15615745, 31231490, 128049109, 256098218, 640245545, 1280491090]

約数ペア:

[(1, 1280491090), (2, 640245545), (5, 256098218), (10, 128049109), (41, 31231490), (82, 15615745), (205, 6246298), (410, 3123149)]