12899840

素因数分解:

$2^9\times 5^1\times {\mathrm{5039}}^1$

素因数の和:5062

約数の個数: 40

約数和(自身を含む): 30935520

約数和(自身を除く): 18035680

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 512, 640, 1280, 2560, 5039, 10078, 20156, 25195, 40312, 50390, 80624, 100780, 161248, 201560, 322496, 403120, 644992, 806240, 1289984, 1612480, 2579968, 3224960, 6449920, 12899840]

約数ペア:

[(1, 12899840), (2, 6449920), (4, 3224960), (5, 2579968), (8, 1612480), (10, 1289984), (16, 806240), (20, 644992), (32, 403120), (40, 322496), (64, 201560), (80, 161248), (128, 100780), (160, 80624), (256, 50390), (320, 40312), (512, 25195), (640, 20156), (1280, 10078), (2560, 5039)]