1280291265

素因数分解:

$3^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{287383}}^1$

素因数の和:287411

約数の個数: 40

約数和(自身を含む): 2503689408

約数和(自身を除く): 1223398143

約数列:

[1, 3, 5, 9, 11, 15, 27, 33, 45, 55, 81, 99, 135, 165, 297, 405, 495, 891, 1485, 4455, 287383, 862149, 1436915, 2586447, 3161213, 4310745, 7759341, 9483639, 12932235, 15806065, 23278023, 28450917, 38796705, 47418195, 85352751, 116390115, 142254585, 256058253, 426763755, 1280291265]

約数ペア:

[(1, 1280291265), (3, 426763755), (5, 256058253), (9, 142254585), (11, 116390115), (15, 85352751), (27, 47418195), (33, 38796705), (45, 28450917), (55, 23278023), (81, 15806065), (99, 12932235), (135, 9483639), (165, 7759341), (297, 4310745), (405, 3161213), (495, 2586447), (891, 1436915), (1485, 862149), (4455, 287383)]