129264640

素因数分解:

$2^{10}\times 5^1\times {\mathrm{25247}}^1$

素因数の和:25272

約数の個数: 44

約数和(自身を含む): 310095936

約数和(自身を除く): 180831296

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 512, 640, 1024, 1280, 2560, 5120, 25247, 50494, 100988, 126235, 201976, 252470, 403952, 504940, 807904, 1009880, 1615808, 2019760, 3231616, 4039520, 6463232, 8079040, 12926464, 16158080, 25852928, 32316160, 64632320, 129264640]

約数ペア:

[(1, 129264640), (2, 64632320), (4, 32316160), (5, 25852928), (8, 16158080), (10, 12926464), (16, 8079040), (20, 6463232), (32, 4039520), (40, 3231616), (64, 2019760), (80, 1615808), (128, 1009880), (160, 807904), (256, 504940), (320, 403952), (512, 252470), (640, 201976), (1024, 126235), (1280, 100988), (2560, 50494), (5120, 25247)]