209457900

素因数分解:

$2^2\times 3^4\times 5^2\times {\mathrm{19}}^1\times {\mathrm{1361}}^1$

素因数の和:1406

約数の個数: 180

約数和(自身を含む): 715240680

約数和(自身を除く): 505782780

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 19, 20, 25, 27, 30, 36, 38, 45, 50, 54, 57, 60, 75, 76, 81, 90, 95, 100, 108, 114, 135, 150, 162, 171, 180, 190, 225, 228, 270, 285, 300, 324, 342, 380, 405, 450, 475, 513, 540, 570, 675, 684, 810, 855, 900, 950, 1026, 1140, 1350, 1361, 1425, 1539, 1620, 1710, 1900, 2025, 2052, 2565, 2700, 2722, 2850, 3078, 3420, 4050, 4083, 4275, 5130, 5444, 5700, 6156, 6805, 7695, 8100, 8166, 8550, 10260, 12249, 12825, 13610, 15390, 16332, 17100, 20415, 24498, 25650, 25859, 27220, 30780, 34025, 36747, 38475, 40830, 48996, 51300, 51718, 61245, 68050, 73494, 76950, 77577, 81660, 102075, 103436, 110241, 122490, 129295, 136100, 146988, 153900, 155154, 183735, 204150, 220482, 232731, 244980, 258590, 306225, 310308, 367470, 387885, 408300, 440964, 465462, 517180, 551205, 612450, 646475, 698193, 734940, 775770, 918675, 930924, 1102410, 1163655, 1224900, 1292950, 1396386, 1551540, 1837350, 1939425, 2094579, 2204820, 2327310, 2585900, 2756025, 2792772, 3490965, 3674700, 3878850, 4189158, 4654620, 5512050, 5818275, 6981930, 7757700, 8378316, 10472895, 11024100, 11636550, 13963860, 17454825, 20945790, 23273100, 34909650, 41891580, 52364475, 69819300, 104728950, 209457900]

約数ペア:

[(1, 209457900), (2, 104728950), (3, 69819300), (4, 52364475), (5, 41891580), (6, 34909650), (9, 23273100), (10, 20945790), (12, 17454825), (15, 13963860), (18, 11636550), (19, 11024100), (20, 10472895), (25, 8378316), (27, 7757700), (30, 6981930), (36, 5818275), (38, 5512050), (45, 4654620), (50, 4189158), (54, 3878850), (57, 3674700), (60, 3490965), (75, 2792772), (76, 2756025), (81, 2585900), (90, 2327310), (95, 2204820), (100, 2094579), (108, 1939425), (114, 1837350), (135, 1551540), (150, 1396386), (162, 1292950), (171, 1224900), (180, 1163655), (190, 1102410), (225, 930924), (228, 918675), (270, 775770), (285, 734940), (300, 698193), (324, 646475), (342, 612450), (380, 551205), (405, 517180), (450, 465462), (475, 440964), (513, 408300), (540, 387885), (570, 367470), (675, 310308), (684, 306225), (810, 258590), (855, 244980), (900, 232731), (950, 220482), (1026, 204150), (1140, 183735), (1350, 155154), (1361, 153900), (1425, 146988), (1539, 136100), (1620, 129295), (1710, 122490), (1900, 110241), (2025, 103436), (2052, 102075), (2565, 81660), (2700, 77577), (2722, 76950), (2850, 73494), (3078, 68050), (3420, 61245), (4050, 51718), (4083, 51300), (4275, 48996), (5130, 40830), (5444, 38475), (5700, 36747), (6156, 34025), (6805, 30780), (7695, 27220), (8100, 25859), (8166, 25650), (8550, 24498), (10260, 20415), (12249, 17100), (12825, 16332), (13610, 15390)]