65040689

素因数分解:

$7^4\times {\mathrm{103}}^1\times {\mathrm{263}}^1$

素因数の和:394

約数の個数: 20

約数和(自身を含む): 76904256

約数和(自身を除く): 11863567

約数列:

[1, 7, 49, 103, 263, 343, 721, 1841, 2401, 5047, 12887, 27089, 35329, 90209, 189623, 247303, 631463, 1327361, 9291527, 65040689]

約数ペア:

[(1, 65040689), (7, 9291527), (49, 1327361), (103, 631463), (263, 247303), (343, 189623), (721, 90209), (1841, 35329), (2401, 27089), (5047, 12887)]