1788923140

素因数分解:

$2^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{1005013}}^1$

素因数の和:1005111

約数の個数: 24

約数和(自身を含む): 3798952920

約数和(自身を除く): 2010029780

約数列:

[1, 2, 4, 5, 10, 20, 89, 178, 356, 445, 890, 1780, 1005013, 2010026, 4020052, 5025065, 10050130, 20100260, 89446157, 178892314, 357784628, 447230785, 894461570, 1788923140]

約数ペア:

[(1, 1788923140), (2, 894461570), (4, 447230785), (5, 357784628), (10, 178892314), (20, 89446157), (89, 20100260), (178, 10050130), (356, 5025065), (445, 4020052), (890, 2010026), (1780, 1005013)]