27780305

素因数分解:

$5^1\times 7^2\times {\mathrm{149}}^1\times {\mathrm{761}}^1$

素因数の和:929

約数の個数: 24

約数和(自身を含む): 39090600

約数和(自身を除く): 11310295

約数列:

[1, 5, 7, 35, 49, 149, 245, 745, 761, 1043, 3805, 5215, 5327, 7301, 26635, 36505, 37289, 113389, 186445, 566945, 793723, 3968615, 5556061, 27780305]

約数ペア:

[(1, 27780305), (5, 5556061), (7, 3968615), (35, 793723), (49, 566945), (149, 186445), (245, 113389), (745, 37289), (761, 36505), (1043, 26635), (3805, 7301), (5215, 5327)]