81565204

素因数分解:

$2^2\times 7^2\times {\mathrm{416149}}^1$

素因数の和:416167

約数の個数: 18

約数和(自身を含む): 166043850

約数和(自身を除く): 84478646

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 196, 416149, 832298, 1664596, 2913043, 5826086, 11652172, 20391301, 40782602, 81565204]

約数ペア:

[(1, 81565204), (2, 40782602), (4, 20391301), (7, 11652172), (14, 5826086), (28, 2913043), (49, 1664596), (98, 832298), (196, 416149)]