1228400640

素因数分解:

$2^{11}\times 3^4\times 5^1\times {\mathrm{1481}}^1$

素因数の和:1520

約数の個数: 240

約数和(自身を含む): 4405941540

約数和(自身を除く): 3177540900

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 32, 36, 40, 45, 48, 54, 60, 64, 72, 80, 81, 90, 96, 108, 120, 128, 135, 144, 160, 162, 180, 192, 216, 240, 256, 270, 288, 320, 324, 360, 384, 405, 432, 480, 512, 540, 576, 640, 648, 720, 768, 810, 864, 960, 1024, 1080, 1152, 1280, 1296, 1440, 1481, 1536, 1620, 1728, 1920, 2048, 2160, 2304, 2560, 2592, 2880, 2962, 3072, 3240, 3456, 3840, 4320, 4443, 4608, 5120, 5184, 5760, 5924, 6144, 6480, 6912, 7405, 7680, 8640, 8886, 9216, 10240, 10368, 11520, 11848, 12960, 13329, 13824, 14810, 15360, 17280, 17772, 18432, 20736, 22215, 23040, 23696, 25920, 26658, 27648, 29620, 30720, 34560, 35544, 39987, 41472, 44430, 46080, 47392, 51840, 53316, 55296, 59240, 66645, 69120, 71088, 79974, 82944, 88860, 92160, 94784, 103680, 106632, 118480, 119961, 133290, 138240, 142176, 159948, 165888, 177720, 189568, 199935, 207360, 213264, 236960, 239922, 266580, 276480, 284352, 319896, 355440, 379136, 399870, 414720, 426528, 473920, 479844, 533160, 568704, 599805, 639792, 710880, 758272, 799740, 829440, 853056, 947840, 959688, 1066320, 1137408, 1199610, 1279584, 1421760, 1516544, 1599480, 1706112, 1895680, 1919376, 2132640, 2274816, 2399220, 2559168, 2843520, 3033088, 3198960, 3412224, 3791360, 3838752, 4265280, 4549632, 4798440, 5118336, 5687040, 6397920, 6824448, 7582720, 7677504, 8530560, 9099264, 9596880, 10236672, 11374080, 12795840, 13648896, 15165440, 15355008, 17061120, 19193760, 20473344, 22748160, 25591680, 27297792, 30710016, 34122240, 38387520, 40946688, 45496320, 51183360, 61420032, 68244480, 76775040, 81893376, 102366720, 122840064, 136488960, 153550080, 204733440, 245680128, 307100160, 409466880, 614200320, 1228400640]

約数ペア:

[(1, 1228400640), (2, 614200320), (3, 409466880), (4, 307100160), (5, 245680128), (6, 204733440), (8, 153550080), (9, 136488960), (10, 122840064), (12, 102366720), (15, 81893376), (16, 76775040), (18, 68244480), (20, 61420032), (24, 51183360), (27, 45496320), (30, 40946688), (32, 38387520), (36, 34122240), (40, 30710016), (45, 27297792), (48, 25591680), (54, 22748160), (60, 20473344), (64, 19193760), (72, 17061120), (80, 15355008), (81, 15165440), (90, 13648896), (96, 12795840), (108, 11374080), (120, 10236672), (128, 9596880), (135, 9099264), (144, 8530560), (160, 7677504), (162, 7582720), (180, 6824448), (192, 6397920), (216, 5687040), (240, 5118336), (256, 4798440), (270, 4549632), (288, 4265280), (320, 3838752), (324, 3791360), (360, 3412224), (384, 3198960), (405, 3033088), (432, 2843520), (480, 2559168), (512, 2399220), (540, 2274816), (576, 2132640), (640, 1919376), (648, 1895680), (720, 1706112), (768, 1599480), (810, 1516544), (864, 1421760), (960, 1279584), (1024, 1199610), (1080, 1137408), (1152, 1066320), (1280, 959688), (1296, 947840), (1440, 853056), (1481, 829440), (1536, 799740), (1620, 758272), (1728, 710880), (1920, 639792), (2048, 599805), (2160, 568704), (2304, 533160), (2560, 479844), (2592, 473920), (2880, 426528), (2962, 414720), (3072, 399870), (3240, 379136), (3456, 355440), (3840, 319896), (4320, 284352), (4443, 276480), (4608, 266580), (5120, 239922), (5184, 236960), (5760, 213264), (5924, 207360), (6144, 199935), (6480, 189568), (6912, 177720), (7405, 165888), (7680, 159948), (8640, 142176), (8886, 138240), (9216, 133290), (10240, 119961), (10368, 118480), (11520, 106632), (11848, 103680), (12960, 94784), (13329, 92160), (13824, 88860), (14810, 82944), (15360, 79974), (17280, 71088), (17772, 69120), (18432, 66645), (20736, 59240), (22215, 55296), (23040, 53316), (23696, 51840), (25920, 47392), (26658, 46080), (27648, 44430), (29620, 41472), (30720, 39987), (34560, 35544)]