28364540

素因数分解:

$2^2\times 5^1\times {\mathrm{53}}^1\times {\mathrm{26759}}^1$

素因数の和:26821

約数の個数: 24

約数和(自身を含む): 60691680

約数和(自身を除く): 32327140

約数列:

[1, 2, 4, 5, 10, 20, 53, 106, 212, 265, 530, 1060, 26759, 53518, 107036, 133795, 267590, 535180, 1418227, 2836454, 5672908, 7091135, 14182270, 28364540]

約数ペア:

[(1, 28364540), (2, 14182270), (4, 7091135), (5, 5672908), (10, 2836454), (20, 1418227), (53, 535180), (106, 267590), (212, 133795), (265, 107036), (530, 53518), (1060, 26759)]