28515675

素因数分解:

$3^1\times 5^2\times {\mathrm{19}}^1\times {\mathrm{20011}}^1$

素因数の和:20043

約数の個数: 24

約数和(自身を含む): 49629760

約数和(自身を除く): 21114085

約数列:

[1, 3, 5, 15, 19, 25, 57, 75, 95, 285, 475, 1425, 20011, 60033, 100055, 300165, 380209, 500275, 1140627, 1500825, 1901045, 5703135, 9505225, 28515675]

約数ペア:

[(1, 28515675), (3, 9505225), (5, 5703135), (15, 1901045), (19, 1500825), (25, 1140627), (57, 500275), (75, 380209), (95, 300165), (285, 100055), (475, 60033), (1425, 20011)]