2659840

素因数分解:

$2^9\times 5^1\times {\mathrm{1039}}^1$

素因数の和:1062

約数の個数: 40

約数和(自身を含む): 6383520

約数和(自身を除く): 3723680

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 512, 640, 1039, 1280, 2078, 2560, 4156, 5195, 8312, 10390, 16624, 20780, 33248, 41560, 66496, 83120, 132992, 166240, 265984, 332480, 531968, 664960, 1329920, 2659840]

約数ペア:

[(1, 2659840), (2, 1329920), (4, 664960), (5, 531968), (8, 332480), (10, 265984), (16, 166240), (20, 132992), (32, 83120), (40, 66496), (64, 41560), (80, 33248), (128, 20780), (160, 16624), (256, 10390), (320, 8312), (512, 5195), (640, 4156), (1039, 2560), (1280, 2078)]