161736140

素因数分解:

$2^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{90863}}^1$

素因数の和:90961

約数の個数: 24

約数和(自身を含む): 343465920

約数和(自身を除く): 181729780

約数列:

[1, 2, 4, 5, 10, 20, 89, 178, 356, 445, 890, 1780, 90863, 181726, 363452, 454315, 908630, 1817260, 8086807, 16173614, 32347228, 40434035, 80868070, 161736140]

約数ペア:

[(1, 161736140), (2, 80868070), (4, 40434035), (5, 32347228), (10, 16173614), (20, 8086807), (89, 1817260), (178, 908630), (356, 454315), (445, 363452), (890, 181726), (1780, 90863)]