28132940

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{127877}}^1$

素因数の和:127897

約数の個数: 24

約数和(自身を含む): 64450512

約数和(自身を除く): 36317572

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 127877, 255754, 511508, 639385, 1278770, 1406647, 2557540, 2813294, 5626588, 7033235, 14066470, 28132940]

約数ペア:

[(1, 28132940), (2, 14066470), (4, 7033235), (5, 5626588), (10, 2813294), (11, 2557540), (20, 1406647), (22, 1278770), (44, 639385), (55, 511508), (110, 255754), (220, 127877)]