280711207

素因数分解:

$7^1\times {\mathrm{73}}^1\times {\mathrm{641}}^1\times {\mathrm{857}}^1$

素因数の和:1578

約数の個数: 16

約数和(自身を含む): 326094912

約数和(自身を除く): 45383705

約数列:

[1, 7, 73, 511, 641, 857, 4487, 5999, 46793, 62561, 327551, 437927, 549337, 3845359, 40101601, 280711207]

約数ペア:

[(1, 280711207), (7, 40101601), (73, 3845359), (511, 549337), (641, 437927), (857, 327551), (4487, 62561), (5999, 46793)]