12321280

素因数分解:

$2^9\times 5^1\times {\mathrm{4813}}^1$

素因数の和:4836

約数の個数: 40

約数和(自身を含む): 29548332

約数和(自身を除く): 17227052

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 512, 640, 1280, 2560, 4813, 9626, 19252, 24065, 38504, 48130, 77008, 96260, 154016, 192520, 308032, 385040, 616064, 770080, 1232128, 1540160, 2464256, 3080320, 6160640, 12321280]

約数ペア:

[(1, 12321280), (2, 6160640), (4, 3080320), (5, 2464256), (8, 1540160), (10, 1232128), (16, 770080), (20, 616064), (32, 385040), (40, 308032), (64, 192520), (80, 154016), (128, 96260), (160, 77008), (256, 48130), (320, 38504), (512, 24065), (640, 19252), (1280, 9626), (2560, 4813)]