209949840

素因数分解:

$2^4\times 3^3\times 5^1\times {\mathrm{37}}^2\times {\mathrm{71}}^1$

素因数の和:167

約数の個数: 240

約数和(自身を含む): 753701760

約数和(自身を除く): 543751920

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 36, 37, 40, 45, 48, 54, 60, 71, 72, 74, 80, 90, 108, 111, 120, 135, 142, 144, 148, 180, 185, 213, 216, 222, 240, 270, 284, 296, 333, 355, 360, 370, 426, 432, 444, 540, 555, 568, 592, 639, 666, 710, 720, 740, 852, 888, 999, 1065, 1080, 1110, 1136, 1278, 1332, 1369, 1420, 1480, 1665, 1704, 1776, 1917, 1998, 2130, 2160, 2220, 2556, 2627, 2664, 2738, 2840, 2960, 3195, 3330, 3408, 3834, 3996, 4107, 4260, 4440, 4995, 5112, 5254, 5328, 5476, 5680, 6390, 6660, 6845, 7668, 7881, 7992, 8214, 8520, 8880, 9585, 9990, 10224, 10508, 10952, 12321, 12780, 13135, 13320, 13690, 15336, 15762, 15984, 16428, 17040, 19170, 19980, 20535, 21016, 21904, 23643, 24642, 25560, 26270, 26640, 27380, 30672, 31524, 32856, 36963, 38340, 39405, 39960, 41070, 42032, 47286, 49284, 51120, 52540, 54760, 61605, 63048, 65712, 70929, 73926, 76680, 78810, 79920, 82140, 94572, 97199, 98568, 105080, 109520, 118215, 123210, 126096, 141858, 147852, 153360, 157620, 164280, 184815, 189144, 194398, 197136, 210160, 236430, 246420, 283716, 291597, 295704, 315240, 328560, 354645, 369630, 378288, 388796, 472860, 485995, 492840, 567432, 583194, 591408, 630480, 709290, 739260, 777592, 874791, 945720, 971990, 985680, 1134864, 1166388, 1418580, 1457985, 1478520, 1555184, 1749582, 1891440, 1943980, 2332776, 2624373, 2837160, 2915970, 2957040, 3499164, 3887960, 4373955, 4665552, 5248746, 5674320, 5831940, 6998328, 7775920, 8747910, 10497492, 11663880, 13121865, 13996656, 17495820, 20994984, 23327760, 26243730, 34991640, 41989968, 52487460, 69983280, 104974920, 209949840]

約数ペア:

[(1, 209949840), (2, 104974920), (3, 69983280), (4, 52487460), (5, 41989968), (6, 34991640), (8, 26243730), (9, 23327760), (10, 20994984), (12, 17495820), (15, 13996656), (16, 13121865), (18, 11663880), (20, 10497492), (24, 8747910), (27, 7775920), (30, 6998328), (36, 5831940), (37, 5674320), (40, 5248746), (45, 4665552), (48, 4373955), (54, 3887960), (60, 3499164), (71, 2957040), (72, 2915970), (74, 2837160), (80, 2624373), (90, 2332776), (108, 1943980), (111, 1891440), (120, 1749582), (135, 1555184), (142, 1478520), (144, 1457985), (148, 1418580), (180, 1166388), (185, 1134864), (213, 985680), (216, 971990), (222, 945720), (240, 874791), (270, 777592), (284, 739260), (296, 709290), (333, 630480), (355, 591408), (360, 583194), (370, 567432), (426, 492840), (432, 485995), (444, 472860), (540, 388796), (555, 378288), (568, 369630), (592, 354645), (639, 328560), (666, 315240), (710, 295704), (720, 291597), (740, 283716), (852, 246420), (888, 236430), (999, 210160), (1065, 197136), (1080, 194398), (1110, 189144), (1136, 184815), (1278, 164280), (1332, 157620), (1369, 153360), (1420, 147852), (1480, 141858), (1665, 126096), (1704, 123210), (1776, 118215), (1917, 109520), (1998, 105080), (2130, 98568), (2160, 97199), (2220, 94572), (2556, 82140), (2627, 79920), (2664, 78810), (2738, 76680), (2840, 73926), (2960, 70929), (3195, 65712), (3330, 63048), (3408, 61605), (3834, 54760), (3996, 52540), (4107, 51120), (4260, 49284), (4440, 47286), (4995, 42032), (5112, 41070), (5254, 39960), (5328, 39405), (5476, 38340), (5680, 36963), (6390, 32856), (6660, 31524), (6845, 30672), (7668, 27380), (7881, 26640), (7992, 26270), (8214, 25560), (8520, 24642), (8880, 23643), (9585, 21904), (9990, 21016), (10224, 20535), (10508, 19980), (10952, 19170), (12321, 17040), (12780, 16428), (13135, 15984), (13320, 15762), (13690, 15336)]