28400900

素因数分解:

$2^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{25819}}^1$

素因数の和:25844

約数の個数: 36

約数和(自身を含む): 67235280

約数和(自身を除く): 38834380

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 25, 44, 50, 55, 100, 110, 220, 275, 550, 1100, 25819, 51638, 103276, 129095, 258190, 284009, 516380, 568018, 645475, 1136036, 1290950, 1420045, 2581900, 2840090, 5680180, 7100225, 14200450, 28400900]

約数ペア:

[(1, 28400900), (2, 14200450), (4, 7100225), (5, 5680180), (10, 2840090), (11, 2581900), (20, 1420045), (22, 1290950), (25, 1136036), (44, 645475), (50, 568018), (55, 516380), (100, 284009), (110, 258190), (220, 129095), (275, 103276), (550, 51638), (1100, 25819)]