77966740

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{90659}}^1$

素因数の和:90711

約数の個数: 24

約数和(自身を含む): 167539680

約数和(自身を除く): 89572940

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 172, 215, 430, 860, 90659, 181318, 362636, 453295, 906590, 1813180, 3898337, 7796674, 15593348, 19491685, 38983370, 77966740]

約数ペア:

[(1, 77966740), (2, 38983370), (4, 19491685), (5, 15593348), (10, 7796674), (20, 3898337), (43, 1813180), (86, 906590), (172, 453295), (215, 362636), (430, 181318), (860, 90659)]