19984700

素因数分解:

$2^2\times 5^2\times {\mathrm{23}}^1\times {\mathrm{8689}}^1$

素因数の和:8726

約数の個数: 36

約数和(自身を含む): 45257520

約数和(自身を除く): 25272820

約数列:

[1, 2, 4, 5, 10, 20, 23, 25, 46, 50, 92, 100, 115, 230, 460, 575, 1150, 2300, 8689, 17378, 34756, 43445, 86890, 173780, 199847, 217225, 399694, 434450, 799388, 868900, 999235, 1998470, 3996940, 4996175, 9992350, 19984700]

約数ペア:

[(1, 19984700), (2, 9992350), (4, 4996175), (5, 3996940), (10, 1998470), (20, 999235), (23, 868900), (25, 799388), (46, 434450), (50, 399694), (92, 217225), (100, 199847), (115, 173780), (230, 86890), (460, 43445), (575, 34756), (1150, 17378), (2300, 8689)]