20376800

素因数分解:

$2^5\times 5^2\times {\mathrm{25471}}^1$

素因数の和:25491

約数の個数: 36

約数和(自身を含む): 49746816

約数和(自身を除く): 29370016

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 80, 100, 160, 200, 400, 800, 25471, 50942, 101884, 127355, 203768, 254710, 407536, 509420, 636775, 815072, 1018840, 1273550, 2037680, 2547100, 4075360, 5094200, 10188400, 20376800]

約数ペア:

[(1, 20376800), (2, 10188400), (4, 5094200), (5, 4075360), (8, 2547100), (10, 2037680), (16, 1273550), (20, 1018840), (25, 815072), (32, 636775), (40, 509420), (50, 407536), (80, 254710), (100, 203768), (160, 127355), (200, 101884), (400, 50942), (800, 25471)]