20405266065

素因数分解:

$3^4\times 5^1\times {\mathrm{50383373}}^1$

素因数の和:50383390

約数の個数: 20

約数和(自身を含む): 36578329524

約数和(自身を除く): 16173063459

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 50383373, 151150119, 251916865, 453450357, 755750595, 1360351071, 2267251785, 4081053213, 6801755355, 20405266065]

約数ペア:

[(1, 20405266065), (3, 6801755355), (5, 4081053213), (9, 2267251785), (15, 1360351071), (27, 755750595), (45, 453450357), (81, 251916865), (135, 151150119), (405, 50383373)]