81319876

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{509}}^1\times {\mathrm{3631}}^1$

素因数の和:4155

約数の個数: 24

約数和(自身を含む): 155594880

約数和(自身を除く): 74275004

約数列:

[1, 2, 4, 11, 22, 44, 509, 1018, 2036, 3631, 5599, 7262, 11198, 14524, 22396, 39941, 79882, 159764, 1848179, 3696358, 7392716, 20329969, 40659938, 81319876]

約数ペア:

[(1, 81319876), (2, 40659938), (4, 20329969), (11, 7392716), (22, 3696358), (44, 1848179), (509, 159764), (1018, 79882), (2036, 39941), (3631, 22396), (5599, 14524), (7262, 11198)]