889900

素因数分解:

$2^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{809}}^1$

素因数の和:834

約数の個数: 36

約数和(自身を含む): 2109240

約数和(自身を除く): 1219340

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 25, 44, 50, 55, 100, 110, 220, 275, 550, 809, 1100, 1618, 3236, 4045, 8090, 8899, 16180, 17798, 20225, 35596, 40450, 44495, 80900, 88990, 177980, 222475, 444950, 889900]

約数ペア:

[(1, 889900), (2, 444950), (4, 222475), (5, 177980), (10, 88990), (11, 80900), (20, 44495), (22, 40450), (25, 35596), (44, 20225), (50, 17798), (55, 16180), (100, 8899), (110, 8090), (220, 4045), (275, 3236), (550, 1618), (809, 1100)]