28087125

素因数分解:

$3^1\times 5^3\times {\mathrm{11}}^2\times {\mathrm{619}}^1$

素因数の和:659

約数の個数: 48

約数和(自身を含む): 51455040

約数和(自身を除く): 23367915

約数列:

[1, 3, 5, 11, 15, 25, 33, 55, 75, 121, 125, 165, 275, 363, 375, 605, 619, 825, 1375, 1815, 1857, 3025, 3095, 4125, 6809, 9075, 9285, 15125, 15475, 20427, 34045, 45375, 46425, 74899, 77375, 102135, 170225, 224697, 232125, 374495, 510675, 851125, 1123485, 1872475, 2553375, 5617425, 9362375, 28087125]

約数ペア:

[(1, 28087125), (3, 9362375), (5, 5617425), (11, 2553375), (15, 1872475), (25, 1123485), (33, 851125), (55, 510675), (75, 374495), (121, 232125), (125, 224697), (165, 170225), (275, 102135), (363, 77375), (375, 74899), (605, 46425), (619, 45375), (825, 34045), (1375, 20427), (1815, 15475), (1857, 15125), (3025, 9285), (3095, 9075), (4125, 6809)]