639866880

素因数分解:

$2^{11}\times 3^2\times 5^1\times {\mathrm{53}}^1\times {\mathrm{131}}^1$

素因数の和:217

約数の個数: 288

約数和(自身を含む): 2276754480

約数和(自身を除く): 1636887600

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 45, 48, 53, 60, 64, 72, 80, 90, 96, 106, 120, 128, 131, 144, 159, 160, 180, 192, 212, 240, 256, 262, 265, 288, 318, 320, 360, 384, 393, 424, 477, 480, 512, 524, 530, 576, 636, 640, 655, 720, 768, 786, 795, 848, 954, 960, 1024, 1048, 1060, 1152, 1179, 1272, 1280, 1310, 1440, 1536, 1572, 1590, 1696, 1908, 1920, 1965, 2048, 2096, 2120, 2304, 2358, 2385, 2544, 2560, 2620, 2880, 3072, 3144, 3180, 3392, 3816, 3840, 3930, 4192, 4240, 4608, 4716, 4770, 5088, 5120, 5240, 5760, 5895, 6144, 6288, 6360, 6784, 6943, 7632, 7680, 7860, 8384, 8480, 9216, 9432, 9540, 10176, 10240, 10480, 11520, 11790, 12576, 12720, 13568, 13886, 15264, 15360, 15720, 16768, 16960, 18432, 18864, 19080, 20352, 20829, 20960, 23040, 23580, 25152, 25440, 27136, 27772, 30528, 30720, 31440, 33536, 33920, 34715, 37728, 38160, 40704, 41658, 41920, 46080, 47160, 50304, 50880, 54272, 55544, 61056, 62487, 62880, 67072, 67840, 69430, 75456, 76320, 81408, 83316, 83840, 92160, 94320, 100608, 101760, 104145, 108544, 111088, 122112, 124974, 125760, 134144, 135680, 138860, 150912, 152640, 162816, 166632, 167680, 188640, 201216, 203520, 208290, 222176, 244224, 249948, 251520, 268288, 271360, 277720, 301824, 305280, 312435, 325632, 333264, 335360, 377280, 402432, 407040, 416580, 444352, 488448, 499896, 503040, 542720, 555440, 603648, 610560, 624870, 666528, 670720, 754560, 804864, 814080, 833160, 888704, 976896, 999792, 1006080, 1110880, 1207296, 1221120, 1249740, 1333056, 1341440, 1509120, 1628160, 1666320, 1777408, 1999584, 2012160, 2221760, 2414592, 2442240, 2499480, 2666112, 3018240, 3332640, 3554816, 3999168, 4024320, 4443520, 4884480, 4998960, 5332224, 6036480, 6665280, 7109632, 7998336, 8887040, 9997920, 10664448, 12072960, 13330560, 14219264, 15996672, 17774080, 19995840, 21328896, 26661120, 31993344, 35548160, 39991680, 42657792, 53322240, 63986688, 71096320, 79983360, 106644480, 127973376, 159966720, 213288960, 319933440, 639866880]

約数ペア:

[(1, 639866880), (2, 319933440), (3, 213288960), (4, 159966720), (5, 127973376), (6, 106644480), (8, 79983360), (9, 71096320), (10, 63986688), (12, 53322240), (15, 42657792), (16, 39991680), (18, 35548160), (20, 31993344), (24, 26661120), (30, 21328896), (32, 19995840), (36, 17774080), (40, 15996672), (45, 14219264), (48, 13330560), (53, 12072960), (60, 10664448), (64, 9997920), (72, 8887040), (80, 7998336), (90, 7109632), (96, 6665280), (106, 6036480), (120, 5332224), (128, 4998960), (131, 4884480), (144, 4443520), (159, 4024320), (160, 3999168), (180, 3554816), (192, 3332640), (212, 3018240), (240, 2666112), (256, 2499480), (262, 2442240), (265, 2414592), (288, 2221760), (318, 2012160), (320, 1999584), (360, 1777408), (384, 1666320), (393, 1628160), (424, 1509120), (477, 1341440), (480, 1333056), (512, 1249740), (524, 1221120), (530, 1207296), (576, 1110880), (636, 1006080), (640, 999792), (655, 976896), (720, 888704), (768, 833160), (786, 814080), (795, 804864), (848, 754560), (954, 670720), (960, 666528), (1024, 624870), (1048, 610560), (1060, 603648), (1152, 555440), (1179, 542720), (1272, 503040), (1280, 499896), (1310, 488448), (1440, 444352), (1536, 416580), (1572, 407040), (1590, 402432), (1696, 377280), (1908, 335360), (1920, 333264), (1965, 325632), (2048, 312435), (2096, 305280), (2120, 301824), (2304, 277720), (2358, 271360), (2385, 268288), (2544, 251520), (2560, 249948), (2620, 244224), (2880, 222176), (3072, 208290), (3144, 203520), (3180, 201216), (3392, 188640), (3816, 167680), (3840, 166632), (3930, 162816), (4192, 152640), (4240, 150912), (4608, 138860), (4716, 135680), (4770, 134144), (5088, 125760), (5120, 124974), (5240, 122112), (5760, 111088), (5895, 108544), (6144, 104145), (6288, 101760), (6360, 100608), (6784, 94320), (6943, 92160), (7632, 83840), (7680, 83316), (7860, 81408), (8384, 76320), (8480, 75456), (9216, 69430), (9432, 67840), (9540, 67072), (10176, 62880), (10240, 62487), (10480, 61056), (11520, 55544), (11790, 54272), (12576, 50880), (12720, 50304), (13568, 47160), (13886, 46080), (15264, 41920), (15360, 41658), (15720, 40704), (16768, 38160), (16960, 37728), (18432, 34715), (18864, 33920), (19080, 33536), (20352, 31440), (20829, 30720), (20960, 30528), (23040, 27772), (23580, 27136), (25152, 25440)]