20237900

素因数分解:

$2^2\times 5^2\times {\mathrm{439}}^1\times {\mathrm{461}}^1$

素因数の和:914

約数の個数: 36

約数和(自身を含む): 44111760

約数和(自身を除く): 23873860

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 439, 461, 878, 922, 1756, 1844, 2195, 2305, 4390, 4610, 8780, 9220, 10975, 11525, 21950, 23050, 43900, 46100, 202379, 404758, 809516, 1011895, 2023790, 4047580, 5059475, 10118950, 20237900]

約数ペア:

[(1, 20237900), (2, 10118950), (4, 5059475), (5, 4047580), (10, 2023790), (20, 1011895), (25, 809516), (50, 404758), (100, 202379), (439, 46100), (461, 43900), (878, 23050), (922, 21950), (1756, 11525), (1844, 10975), (2195, 9220), (2305, 8780), (4390, 4610)]