128827720

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{460099}}^1$

素因数の和:460117

約数の個数: 32

約数和(自身を含む): 331272000

約数和(自身を除く): 202444280

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 460099, 920198, 1840396, 2300495, 3220693, 3680792, 4600990, 6441386, 9201980, 12882772, 16103465, 18403960, 25765544, 32206930, 64413860, 128827720]

約数ペア:

[(1, 128827720), (2, 64413860), (4, 32206930), (5, 25765544), (7, 18403960), (8, 16103465), (10, 12882772), (14, 9201980), (20, 6441386), (28, 4600990), (35, 3680792), (40, 3220693), (56, 2300495), (70, 1840396), (140, 920198), (280, 460099)]