20175850

素因数分解:

$2^1\times 5^2\times {\mathrm{139}}^1\times {\mathrm{2903}}^1$

素因数の和:3054

約数の個数: 24

約数和(自身を含む): 37810080

約数和(自身を除く): 17634230

約数列:

[1, 2, 5, 10, 25, 50, 139, 278, 695, 1390, 2903, 3475, 5806, 6950, 14515, 29030, 72575, 145150, 403517, 807034, 2017585, 4035170, 10087925, 20175850]

約数ペア:

[(1, 20175850), (2, 10087925), (5, 4035170), (10, 2017585), (25, 807034), (50, 403517), (139, 145150), (278, 72575), (695, 29030), (1390, 14515), (2903, 6950), (3475, 5806)]