20197980740

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{144271291}}^1$

素因数の和:144271307

約数の個数: 24

約数和(自身を含む): 48475154112

約数和(自身を除く): 28277173372

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 144271291, 288542582, 577085164, 721356455, 1009899037, 1442712910, 2019798074, 2885425820, 4039596148, 5049495185, 10098990370, 20197980740]

約数ペア:

[(1, 20197980740), (2, 10098990370), (4, 5049495185), (5, 4039596148), (7, 2885425820), (10, 2019798074), (14, 1442712910), (20, 1009899037), (28, 721356455), (35, 577085164), (70, 288542582), (140, 144271291)]