81449280

素因数分解:

$2^6\times 3^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{857}}^1$

素因数の和:894

約数の個数: 224

約数和(自身を含む): 313822080

約数和(自身を除く): 232372800

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 11, 12, 15, 16, 18, 20, 22, 24, 27, 30, 32, 33, 36, 40, 44, 45, 48, 54, 55, 60, 64, 66, 72, 80, 88, 90, 96, 99, 108, 110, 120, 132, 135, 144, 160, 165, 176, 180, 192, 198, 216, 220, 240, 264, 270, 288, 297, 320, 330, 352, 360, 396, 432, 440, 480, 495, 528, 540, 576, 594, 660, 704, 720, 792, 857, 864, 880, 960, 990, 1056, 1080, 1188, 1320, 1440, 1485, 1584, 1714, 1728, 1760, 1980, 2112, 2160, 2376, 2571, 2640, 2880, 2970, 3168, 3428, 3520, 3960, 4285, 4320, 4752, 5142, 5280, 5940, 6336, 6856, 7713, 7920, 8570, 8640, 9427, 9504, 10284, 10560, 11880, 12855, 13712, 15426, 15840, 17140, 18854, 19008, 20568, 23139, 23760, 25710, 27424, 28281, 30852, 31680, 34280, 37708, 38565, 41136, 46278, 47135, 47520, 51420, 54848, 56562, 61704, 68560, 75416, 77130, 82272, 84843, 92556, 94270, 95040, 102840, 113124, 115695, 123408, 137120, 141405, 150832, 154260, 164544, 169686, 185112, 188540, 205680, 226248, 231390, 246816, 254529, 274240, 282810, 301664, 308520, 339372, 370224, 377080, 411360, 424215, 452496, 462780, 493632, 509058, 565620, 603328, 617040, 678744, 740448, 754160, 822720, 848430, 904992, 925560, 1018116, 1131240, 1234080, 1272645, 1357488, 1480896, 1508320, 1696860, 1809984, 1851120, 2036232, 2262480, 2468160, 2545290, 2714976, 3016640, 3393720, 3702240, 4072464, 4524960, 5090580, 5429952, 6787440, 7404480, 8144928, 9049920, 10181160, 13574880, 16289856, 20362320, 27149760, 40724640, 81449280]

約数ペア:

[(1, 81449280), (2, 40724640), (3, 27149760), (4, 20362320), (5, 16289856), (6, 13574880), (8, 10181160), (9, 9049920), (10, 8144928), (11, 7404480), (12, 6787440), (15, 5429952), (16, 5090580), (18, 4524960), (20, 4072464), (22, 3702240), (24, 3393720), (27, 3016640), (30, 2714976), (32, 2545290), (33, 2468160), (36, 2262480), (40, 2036232), (44, 1851120), (45, 1809984), (48, 1696860), (54, 1508320), (55, 1480896), (60, 1357488), (64, 1272645), (66, 1234080), (72, 1131240), (80, 1018116), (88, 925560), (90, 904992), (96, 848430), (99, 822720), (108, 754160), (110, 740448), (120, 678744), (132, 617040), (135, 603328), (144, 565620), (160, 509058), (165, 493632), (176, 462780), (180, 452496), (192, 424215), (198, 411360), (216, 377080), (220, 370224), (240, 339372), (264, 308520), (270, 301664), (288, 282810), (297, 274240), (320, 254529), (330, 246816), (352, 231390), (360, 226248), (396, 205680), (432, 188540), (440, 185112), (480, 169686), (495, 164544), (528, 154260), (540, 150832), (576, 141405), (594, 137120), (660, 123408), (704, 115695), (720, 113124), (792, 102840), (857, 95040), (864, 94270), (880, 92556), (960, 84843), (990, 82272), (1056, 77130), (1080, 75416), (1188, 68560), (1320, 61704), (1440, 56562), (1485, 54848), (1584, 51420), (1714, 47520), (1728, 47135), (1760, 46278), (1980, 41136), (2112, 38565), (2160, 37708), (2376, 34280), (2571, 31680), (2640, 30852), (2880, 28281), (2970, 27424), (3168, 25710), (3428, 23760), (3520, 23139), (3960, 20568), (4285, 19008), (4320, 18854), (4752, 17140), (5142, 15840), (5280, 15426), (5940, 13712), (6336, 12855), (6856, 11880), (7713, 10560), (7920, 10284), (8570, 9504), (8640, 9427)]