28901620

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{131371}}^1$

素因数の和:131391

約数の個数: 24

約数和(自身を含む): 66211488

約数和(自身を除く): 37309868

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 131371, 262742, 525484, 656855, 1313710, 1445081, 2627420, 2890162, 5780324, 7225405, 14450810, 28901620]

約数ペア:

[(1, 28901620), (2, 14450810), (4, 7225405), (5, 5780324), (10, 2890162), (11, 2627420), (20, 1445081), (22, 1313710), (44, 656855), (55, 525484), (110, 262742), (220, 131371)]