20435905

素因数分解:

$5^1\times 7^1\times {\mathrm{157}}^1\times {\mathrm{3719}}^1$

素因数の和:3888

約数の個数: 16

約数和(自身を含む): 28212480

約数和(自身を除く): 7776575

約数列:

[1, 5, 7, 35, 157, 785, 1099, 3719, 5495, 18595, 26033, 130165, 583883, 2919415, 4087181, 20435905]

約数ペア:

[(1, 20435905), (5, 4087181), (7, 2919415), (35, 583883), (157, 130165), (785, 26033), (1099, 18595), (3719, 5495)]