20975950

素因数分解:

$2^1\times 5^2\times {\mathrm{103}}^1\times {\mathrm{4073}}^1$

素因数の和:4188

約数の個数: 24

約数和(自身を含む): 39403728

約数和(自身を除く): 18427778

約数列:

[1, 2, 5, 10, 25, 50, 103, 206, 515, 1030, 2575, 4073, 5150, 8146, 20365, 40730, 101825, 203650, 419519, 839038, 2097595, 4195190, 10487975, 20975950]

約数ペア:

[(1, 20975950), (2, 10487975), (5, 4195190), (10, 2097595), (25, 839038), (50, 419519), (103, 203650), (206, 101825), (515, 40730), (1030, 20365), (2575, 8146), (4073, 5150)]