20748080

素因数分解:

$2^4\times 5^1\times {\mathrm{167}}^1\times {\mathrm{1553}}^1$

素因数の和:1733

約数の個数: 40

約数和(自身を含む): 48559392

約数和(自身を除く): 27811312

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 167, 334, 668, 835, 1336, 1553, 1670, 2672, 3106, 3340, 6212, 6680, 7765, 12424, 13360, 15530, 24848, 31060, 62120, 124240, 259351, 518702, 1037404, 1296755, 2074808, 2593510, 4149616, 5187020, 10374040, 20748080]

約数ペア:

[(1, 20748080), (2, 10374040), (4, 5187020), (5, 4149616), (8, 2593510), (10, 2074808), (16, 1296755), (20, 1037404), (40, 518702), (80, 259351), (167, 124240), (334, 62120), (668, 31060), (835, 24848), (1336, 15530), (1553, 13360), (1670, 12424), (2672, 7765), (3106, 6680), (3340, 6212)]