261387720

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{149}}^1\times {\mathrm{443}}^1$

素因数の和:620

約数の個数: 192

約数和(自身を含む): 935064000

約数和(自身を除く): 673676280

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 11, 12, 15, 18, 20, 22, 24, 30, 33, 36, 40, 44, 45, 55, 60, 66, 72, 88, 90, 99, 110, 120, 132, 149, 165, 180, 198, 220, 264, 298, 330, 360, 396, 440, 443, 447, 495, 596, 660, 745, 792, 886, 894, 990, 1192, 1320, 1329, 1341, 1490, 1639, 1772, 1788, 1980, 2215, 2235, 2658, 2682, 2980, 3278, 3544, 3576, 3960, 3987, 4430, 4470, 4873, 4917, 5316, 5364, 5960, 6556, 6645, 6705, 7974, 8195, 8860, 8940, 9746, 9834, 10632, 10728, 13112, 13290, 13410, 14619, 14751, 15948, 16390, 17720, 17880, 19492, 19668, 19935, 24365, 24585, 26580, 26820, 29238, 29502, 31896, 32780, 38984, 39336, 39870, 43857, 48730, 49170, 53160, 53640, 58476, 59004, 65560, 66007, 73095, 73755, 79740, 87714, 97460, 98340, 116952, 118008, 132014, 146190, 147510, 159480, 175428, 194920, 196680, 198021, 219285, 264028, 292380, 295020, 330035, 350856, 396042, 438570, 528056, 584760, 590040, 594063, 660070, 726077, 792084, 877140, 990105, 1188126, 1320140, 1452154, 1584168, 1754280, 1980210, 2178231, 2376252, 2640280, 2904308, 2970315, 3630385, 3960420, 4356462, 4752504, 5808616, 5940630, 6534693, 7260770, 7920840, 8712924, 10891155, 11881260, 13069386, 14521540, 17425848, 21782310, 23762520, 26138772, 29043080, 32673465, 43564620, 52277544, 65346930, 87129240, 130693860, 261387720]

約数ペア:

[(1, 261387720), (2, 130693860), (3, 87129240), (4, 65346930), (5, 52277544), (6, 43564620), (8, 32673465), (9, 29043080), (10, 26138772), (11, 23762520), (12, 21782310), (15, 17425848), (18, 14521540), (20, 13069386), (22, 11881260), (24, 10891155), (30, 8712924), (33, 7920840), (36, 7260770), (40, 6534693), (44, 5940630), (45, 5808616), (55, 4752504), (60, 4356462), (66, 3960420), (72, 3630385), (88, 2970315), (90, 2904308), (99, 2640280), (110, 2376252), (120, 2178231), (132, 1980210), (149, 1754280), (165, 1584168), (180, 1452154), (198, 1320140), (220, 1188126), (264, 990105), (298, 877140), (330, 792084), (360, 726077), (396, 660070), (440, 594063), (443, 590040), (447, 584760), (495, 528056), (596, 438570), (660, 396042), (745, 350856), (792, 330035), (886, 295020), (894, 292380), (990, 264028), (1192, 219285), (1320, 198021), (1329, 196680), (1341, 194920), (1490, 175428), (1639, 159480), (1772, 147510), (1788, 146190), (1980, 132014), (2215, 118008), (2235, 116952), (2658, 98340), (2682, 97460), (2980, 87714), (3278, 79740), (3544, 73755), (3576, 73095), (3960, 66007), (3987, 65560), (4430, 59004), (4470, 58476), (4873, 53640), (4917, 53160), (5316, 49170), (5364, 48730), (5960, 43857), (6556, 39870), (6645, 39336), (6705, 38984), (7974, 32780), (8195, 31896), (8860, 29502), (8940, 29238), (9746, 26820), (9834, 26580), (10632, 24585), (10728, 24365), (13112, 19935), (13290, 19668), (13410, 19492), (14619, 17880), (14751, 17720), (15948, 16390)]