208508720

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{43}}^1\times {\mathrm{1237}}^1$

素因数の和:1307

約数の個数: 120

約数和(自身を含む): 577512144

約数和(自身を除く): 369003424

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 43, 49, 56, 70, 80, 86, 98, 112, 140, 172, 196, 215, 245, 280, 301, 344, 392, 430, 490, 560, 602, 688, 784, 860, 980, 1204, 1237, 1505, 1720, 1960, 2107, 2408, 2474, 3010, 3440, 3920, 4214, 4816, 4948, 6020, 6185, 8428, 8659, 9896, 10535, 12040, 12370, 16856, 17318, 19792, 21070, 24080, 24740, 33712, 34636, 42140, 43295, 49480, 53191, 60613, 69272, 84280, 86590, 98960, 106382, 121226, 138544, 168560, 173180, 212764, 242452, 265955, 303065, 346360, 372337, 425528, 484904, 531910, 606130, 692720, 744674, 851056, 969808, 1063820, 1212260, 1489348, 1861685, 2127640, 2424520, 2606359, 2978696, 3723370, 4255280, 4849040, 5212718, 5957392, 7446740, 10425436, 13031795, 14893480, 20850872, 26063590, 29786960, 41701744, 52127180, 104254360, 208508720]

約数ペア:

[(1, 208508720), (2, 104254360), (4, 52127180), (5, 41701744), (7, 29786960), (8, 26063590), (10, 20850872), (14, 14893480), (16, 13031795), (20, 10425436), (28, 7446740), (35, 5957392), (40, 5212718), (43, 4849040), (49, 4255280), (56, 3723370), (70, 2978696), (80, 2606359), (86, 2424520), (98, 2127640), (112, 1861685), (140, 1489348), (172, 1212260), (196, 1063820), (215, 969808), (245, 851056), (280, 744674), (301, 692720), (344, 606130), (392, 531910), (430, 484904), (490, 425528), (560, 372337), (602, 346360), (688, 303065), (784, 265955), (860, 242452), (980, 212764), (1204, 173180), (1237, 168560), (1505, 138544), (1720, 121226), (1960, 106382), (2107, 98960), (2408, 86590), (2474, 84280), (3010, 69272), (3440, 60613), (3920, 53191), (4214, 49480), (4816, 43295), (4948, 42140), (6020, 34636), (6185, 33712), (8428, 24740), (8659, 24080), (9896, 21070), (10535, 19792), (12040, 17318), (12370, 16856)]