28872675

素因数分解:

$3^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{9871}}^1$

素因数の和:9900

約数の個数: 36

約数和(自身を含む): 55697824

約数和(自身を除く): 26825149

約数列:

[1, 3, 5, 9, 13, 15, 25, 39, 45, 65, 75, 117, 195, 225, 325, 585, 975, 2925, 9871, 29613, 49355, 88839, 128323, 148065, 246775, 384969, 444195, 641615, 740325, 1154907, 1924845, 2220975, 3208075, 5774535, 9624225, 28872675]

約数ペア:

[(1, 28872675), (3, 9624225), (5, 5774535), (9, 3208075), (13, 2220975), (15, 1924845), (25, 1154907), (39, 740325), (45, 641615), (65, 444195), (75, 384969), (117, 246775), (195, 148065), (225, 128323), (325, 88839), (585, 49355), (975, 29613), (2925, 9871)]