208664500

素因数分解:

$2^2\times 5^3\times {\mathrm{11}}^2\times {\mathrm{3449}}^1$

素因数の和:3490

約数の個数: 72

約数和(自身を含む): 501064200

約数和(自身を除く): 292399700

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 25, 44, 50, 55, 100, 110, 121, 125, 220, 242, 250, 275, 484, 500, 550, 605, 1100, 1210, 1375, 2420, 2750, 3025, 3449, 5500, 6050, 6898, 12100, 13796, 15125, 17245, 30250, 34490, 37939, 60500, 68980, 75878, 86225, 151756, 172450, 189695, 344900, 379390, 417329, 431125, 758780, 834658, 862250, 948475, 1669316, 1724500, 1896950, 2086645, 3793900, 4173290, 4742375, 8346580, 9484750, 10433225, 18969500, 20866450, 41732900, 52166125, 104332250, 208664500]

約数ペア:

[(1, 208664500), (2, 104332250), (4, 52166125), (5, 41732900), (10, 20866450), (11, 18969500), (20, 10433225), (22, 9484750), (25, 8346580), (44, 4742375), (50, 4173290), (55, 3793900), (100, 2086645), (110, 1896950), (121, 1724500), (125, 1669316), (220, 948475), (242, 862250), (250, 834658), (275, 758780), (484, 431125), (500, 417329), (550, 379390), (605, 344900), (1100, 189695), (1210, 172450), (1375, 151756), (2420, 86225), (2750, 75878), (3025, 68980), (3449, 60500), (5500, 37939), (6050, 34490), (6898, 30250), (12100, 17245), (13796, 15125)]