258529280

素因数分解:

$2^{11}\times 5^1\times {\mathrm{25247}}^1$

素因数の和:25274

約数の個数: 48

約数和(自身を含む): 620343360

約数和(自身を除く): 361814080

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 512, 640, 1024, 1280, 2048, 2560, 5120, 10240, 25247, 50494, 100988, 126235, 201976, 252470, 403952, 504940, 807904, 1009880, 1615808, 2019760, 3231616, 4039520, 6463232, 8079040, 12926464, 16158080, 25852928, 32316160, 51705856, 64632320, 129264640, 258529280]

約数ペア:

[(1, 258529280), (2, 129264640), (4, 64632320), (5, 51705856), (8, 32316160), (10, 25852928), (16, 16158080), (20, 12926464), (32, 8079040), (40, 6463232), (64, 4039520), (80, 3231616), (128, 2019760), (160, 1615808), (256, 1009880), (320, 807904), (512, 504940), (640, 403952), (1024, 252470), (1280, 201976), (2048, 126235), (2560, 100988), (5120, 50494), (10240, 25247)]