12638720

素因数分解:

$2^9\times 5^1\times {\mathrm{4937}}^1$

素因数の和:4960

約数の個数: 40

約数和(自身を含む): 30309444

約数和(自身を除く): 17670724

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 512, 640, 1280, 2560, 4937, 9874, 19748, 24685, 39496, 49370, 78992, 98740, 157984, 197480, 315968, 394960, 631936, 789920, 1263872, 1579840, 2527744, 3159680, 6319360, 12638720]

約数ペア:

[(1, 12638720), (2, 6319360), (4, 3159680), (5, 2527744), (8, 1579840), (10, 1263872), (16, 789920), (20, 631936), (32, 394960), (40, 315968), (64, 197480), (80, 157984), (128, 98740), (160, 78992), (256, 49370), (320, 39496), (512, 24685), (640, 19748), (1280, 9874), (2560, 4937)]