280389627

素因数分解:

$3^3\times 7^1\times {\mathrm{43}}^1\times {\mathrm{34501}}^1$

素因数の和:34560

約数の個数: 32

約数和(自身を含む): 485788160

約数和(自身を除く): 205398533

約数列:

[1, 3, 7, 9, 21, 27, 43, 63, 129, 189, 301, 387, 903, 1161, 2709, 8127, 34501, 103503, 241507, 310509, 724521, 931527, 1483543, 2173563, 4450629, 6520689, 10384801, 13351887, 31154403, 40055661, 93463209, 280389627]

約数ペア:

[(1, 280389627), (3, 93463209), (7, 40055661), (9, 31154403), (21, 13351887), (27, 10384801), (43, 6520689), (63, 4450629), (129, 2173563), (189, 1483543), (301, 931527), (387, 724521), (903, 310509), (1161, 241507), (2709, 103503), (8127, 34501)]