20124500

素因数分解:

$2^2\times 5^3\times {\mathrm{11}}^1\times {\mathrm{3659}}^1$

素因数の和:3689

約数の個数: 48

約数和(自身を含む): 47960640

約数和(自身を除く): 27836140

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 25, 44, 50, 55, 100, 110, 125, 220, 250, 275, 500, 550, 1100, 1375, 2750, 3659, 5500, 7318, 14636, 18295, 36590, 40249, 73180, 80498, 91475, 160996, 182950, 201245, 365900, 402490, 457375, 804980, 914750, 1006225, 1829500, 2012450, 4024900, 5031125, 10062250, 20124500]

約数ペア:

[(1, 20124500), (2, 10062250), (4, 5031125), (5, 4024900), (10, 2012450), (11, 1829500), (20, 1006225), (22, 914750), (25, 804980), (44, 457375), (50, 402490), (55, 365900), (100, 201245), (110, 182950), (125, 160996), (220, 91475), (250, 80498), (275, 73180), (500, 40249), (550, 36590), (1100, 18295), (1375, 14636), (2750, 7318), (3659, 5500)]