12880385

素因数分解:

$5^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{2767}}^1$

素因数の和:2805

約数の個数: 24

約数和(自身を含む): 18933120

約数和(自身を除く): 6052735

約数列:

[1, 5, 7, 19, 35, 49, 95, 133, 245, 665, 931, 2767, 4655, 13835, 19369, 52573, 96845, 135583, 262865, 368011, 677915, 1840055, 2576077, 12880385]

約数ペア:

[(1, 12880385), (5, 2576077), (7, 1840055), (19, 677915), (35, 368011), (49, 262865), (95, 135583), (133, 96845), (245, 52573), (665, 19369), (931, 13835), (2767, 4655)]