20500165

素因数分解:

$5^1\times 7^1\times {\mathrm{149}}^1\times {\mathrm{3931}}^1$

素因数の和:4092

約数の個数: 16

約数和(自身を含む): 28310400

約数和(自身を除く): 7810235

約数列:

[1, 5, 7, 35, 149, 745, 1043, 3931, 5215, 19655, 27517, 137585, 585719, 2928595, 4100033, 20500165]

約数ペア:

[(1, 20500165), (5, 4100033), (7, 2928595), (35, 585719), (149, 137585), (745, 27517), (1043, 19655), (3931, 5215)]