1278493065

素因数分解:

$3^4\times 5^1\times {\mathrm{23}}^1\times {\mathrm{137251}}^1$

素因数の和:137291

約数の個数: 40

約数和(自身を含む): 2391478848

約数和(自身を除く): 1112985783

約数列:

[1, 3, 5, 9, 15, 23, 27, 45, 69, 81, 115, 135, 207, 345, 405, 621, 1035, 1863, 3105, 9315, 137251, 411753, 686255, 1235259, 2058765, 3156773, 3705777, 6176295, 9470319, 11117331, 15783865, 18528885, 28410957, 47351595, 55586655, 85232871, 142054785, 255698613, 426164355, 1278493065]

約数ペア:

[(1, 1278493065), (3, 426164355), (5, 255698613), (9, 142054785), (15, 85232871), (23, 55586655), (27, 47351595), (45, 28410957), (69, 18528885), (81, 15783865), (115, 11117331), (135, 9470319), (207, 6176295), (345, 3705777), (405, 3156773), (621, 2058765), (1035, 1235259), (1863, 686255), (3105, 411753), (9315, 137251)]