280212289

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{79}}^1\times {\mathrm{22031}}^1$

素因数の和:22140

約数の個数: 16

約数和(自身を含む): 338411520

約数和(自身を除く): 58199231

約数列:

[1, 7, 23, 79, 161, 553, 1817, 12719, 22031, 154217, 506713, 1740449, 3546991, 12183143, 40030327, 280212289]

約数ペア:

[(1, 280212289), (7, 40030327), (23, 12183143), (79, 3546991), (161, 1740449), (553, 506713), (1817, 154217), (12719, 22031)]