991259280

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{257}}^1\times {\mathrm{487}}^1$

素因数の和:774

約数の個数: 240

約数和(自身を含む): 3653230464

約数和(自身を除く): 2661971184

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 11, 12, 15, 16, 18, 20, 22, 24, 30, 33, 36, 40, 44, 45, 48, 55, 60, 66, 72, 80, 88, 90, 99, 110, 120, 132, 144, 165, 176, 180, 198, 220, 240, 257, 264, 330, 360, 396, 440, 487, 495, 514, 528, 660, 720, 771, 792, 880, 974, 990, 1028, 1285, 1320, 1461, 1542, 1584, 1948, 1980, 2056, 2313, 2435, 2570, 2640, 2827, 2922, 3084, 3855, 3896, 3960, 4112, 4383, 4626, 4870, 5140, 5357, 5654, 5844, 6168, 7305, 7710, 7792, 7920, 8481, 8766, 9252, 9740, 10280, 10714, 11308, 11565, 11688, 12336, 14135, 14610, 15420, 16071, 16962, 17532, 18504, 19480, 20560, 21428, 21915, 22616, 23130, 23376, 25443, 26785, 28270, 29220, 30840, 32142, 33924, 35064, 37008, 38960, 42405, 42856, 43830, 45232, 46260, 48213, 50886, 53570, 56540, 58440, 61680, 64284, 67848, 70128, 80355, 84810, 85712, 87660, 92520, 96426, 101772, 107140, 113080, 116880, 125159, 127215, 128568, 135696, 160710, 169620, 175320, 185040, 192852, 203544, 214280, 226160, 241065, 250318, 254430, 257136, 321420, 339240, 350640, 375477, 385704, 407088, 428560, 482130, 500636, 508860, 625795, 642840, 678480, 750954, 771408, 964260, 1001272, 1017720, 1126431, 1251590, 1285680, 1376749, 1501908, 1877385, 1928520, 2002544, 2035440, 2252862, 2503180, 2753498, 3003816, 3754770, 3857040, 4130247, 4505724, 5006360, 5506996, 5632155, 6007632, 6883745, 7509540, 8260494, 9011448, 10012720, 11013992, 11264310, 12390741, 13767490, 15019080, 16520988, 18022896, 20651235, 22027984, 22528620, 24781482, 27534980, 30038160, 33041976, 41302470, 45057240, 49562964, 55069960, 61953705, 66083952, 82604940, 90114480, 99125928, 110139920, 123907410, 165209880, 198251856, 247814820, 330419760, 495629640, 991259280]

約数ペア:

[(1, 991259280), (2, 495629640), (3, 330419760), (4, 247814820), (5, 198251856), (6, 165209880), (8, 123907410), (9, 110139920), (10, 99125928), (11, 90114480), (12, 82604940), (15, 66083952), (16, 61953705), (18, 55069960), (20, 49562964), (22, 45057240), (24, 41302470), (30, 33041976), (33, 30038160), (36, 27534980), (40, 24781482), (44, 22528620), (45, 22027984), (48, 20651235), (55, 18022896), (60, 16520988), (66, 15019080), (72, 13767490), (80, 12390741), (88, 11264310), (90, 11013992), (99, 10012720), (110, 9011448), (120, 8260494), (132, 7509540), (144, 6883745), (165, 6007632), (176, 5632155), (180, 5506996), (198, 5006360), (220, 4505724), (240, 4130247), (257, 3857040), (264, 3754770), (330, 3003816), (360, 2753498), (396, 2503180), (440, 2252862), (487, 2035440), (495, 2002544), (514, 1928520), (528, 1877385), (660, 1501908), (720, 1376749), (771, 1285680), (792, 1251590), (880, 1126431), (974, 1017720), (990, 1001272), (1028, 964260), (1285, 771408), (1320, 750954), (1461, 678480), (1542, 642840), (1584, 625795), (1948, 508860), (1980, 500636), (2056, 482130), (2313, 428560), (2435, 407088), (2570, 385704), (2640, 375477), (2827, 350640), (2922, 339240), (3084, 321420), (3855, 257136), (3896, 254430), (3960, 250318), (4112, 241065), (4383, 226160), (4626, 214280), (4870, 203544), (5140, 192852), (5357, 185040), (5654, 175320), (5844, 169620), (6168, 160710), (7305, 135696), (7710, 128568), (7792, 127215), (7920, 125159), (8481, 116880), (8766, 113080), (9252, 107140), (9740, 101772), (10280, 96426), (10714, 92520), (11308, 87660), (11565, 85712), (11688, 84810), (12336, 80355), (14135, 70128), (14610, 67848), (15420, 64284), (16071, 61680), (16962, 58440), (17532, 56540), (18504, 53570), (19480, 50886), (20560, 48213), (21428, 46260), (21915, 45232), (22616, 43830), (23130, 42856), (23376, 42405), (25443, 38960), (26785, 37008), (28270, 35064), (29220, 33924), (30840, 32142)]