208018720

素因数分解:

$2^5\times 5^1\times 7^2\times {\mathrm{13}}^2\times {\mathrm{157}}^1$

素因数の和:212

約数の個数: 216

約数和(自身を含む): 622981044

約数和(自身を除く): 414962324

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 26, 28, 32, 35, 40, 49, 52, 56, 65, 70, 80, 91, 98, 104, 112, 130, 140, 157, 160, 169, 182, 196, 208, 224, 245, 260, 280, 314, 338, 364, 392, 416, 455, 490, 520, 560, 628, 637, 676, 728, 784, 785, 845, 910, 980, 1040, 1099, 1120, 1183, 1256, 1274, 1352, 1456, 1568, 1570, 1690, 1820, 1960, 2041, 2080, 2198, 2366, 2512, 2548, 2704, 2912, 3140, 3185, 3380, 3640, 3920, 4082, 4396, 4732, 5024, 5096, 5408, 5495, 5915, 6280, 6370, 6760, 7280, 7693, 7840, 8164, 8281, 8792, 9464, 10192, 10205, 10990, 11830, 12560, 12740, 13520, 14287, 14560, 15386, 16328, 16562, 17584, 18928, 20384, 20410, 21980, 23660, 25120, 25480, 26533, 27040, 28574, 30772, 32656, 33124, 35168, 37856, 38465, 40820, 41405, 43960, 47320, 50960, 53066, 57148, 61544, 65312, 66248, 71435, 76930, 81640, 82810, 87920, 94640, 100009, 101920, 106132, 114296, 123088, 132496, 132665, 142870, 153860, 163280, 165620, 175840, 185731, 189280, 200018, 212264, 228592, 246176, 264992, 265330, 285740, 307720, 326560, 331240, 371462, 400036, 424528, 457184, 500045, 530660, 571480, 615440, 662480, 742924, 800072, 849056, 928655, 1000090, 1061320, 1142960, 1230880, 1300117, 1324960, 1485848, 1600144, 1857310, 2000180, 2122640, 2285920, 2600234, 2971696, 3200288, 3714620, 4000360, 4245280, 5200468, 5943392, 6500585, 7429240, 8000720, 10400936, 13001170, 14858480, 16001440, 20801872, 26002340, 29716960, 41603744, 52004680, 104009360, 208018720]

約数ペア:

[(1, 208018720), (2, 104009360), (4, 52004680), (5, 41603744), (7, 29716960), (8, 26002340), (10, 20801872), (13, 16001440), (14, 14858480), (16, 13001170), (20, 10400936), (26, 8000720), (28, 7429240), (32, 6500585), (35, 5943392), (40, 5200468), (49, 4245280), (52, 4000360), (56, 3714620), (65, 3200288), (70, 2971696), (80, 2600234), (91, 2285920), (98, 2122640), (104, 2000180), (112, 1857310), (130, 1600144), (140, 1485848), (157, 1324960), (160, 1300117), (169, 1230880), (182, 1142960), (196, 1061320), (208, 1000090), (224, 928655), (245, 849056), (260, 800072), (280, 742924), (314, 662480), (338, 615440), (364, 571480), (392, 530660), (416, 500045), (455, 457184), (490, 424528), (520, 400036), (560, 371462), (628, 331240), (637, 326560), (676, 307720), (728, 285740), (784, 265330), (785, 264992), (845, 246176), (910, 228592), (980, 212264), (1040, 200018), (1099, 189280), (1120, 185731), (1183, 175840), (1256, 165620), (1274, 163280), (1352, 153860), (1456, 142870), (1568, 132665), (1570, 132496), (1690, 123088), (1820, 114296), (1960, 106132), (2041, 101920), (2080, 100009), (2198, 94640), (2366, 87920), (2512, 82810), (2548, 81640), (2704, 76930), (2912, 71435), (3140, 66248), (3185, 65312), (3380, 61544), (3640, 57148), (3920, 53066), (4082, 50960), (4396, 47320), (4732, 43960), (5024, 41405), (5096, 40820), (5408, 38465), (5495, 37856), (5915, 35168), (6280, 33124), (6370, 32656), (6760, 30772), (7280, 28574), (7693, 27040), (7840, 26533), (8164, 25480), (8281, 25120), (8792, 23660), (9464, 21980), (10192, 20410), (10205, 20384), (10990, 18928), (11830, 17584), (12560, 16562), (12740, 16328), (13520, 15386), (14287, 14560)]