209684720

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{149}}^1\times {\mathrm{359}}^1$

素因数の和:535

約数の個数: 120

約数和(自身を含む): 572508000

約数和(自身を除く): 362823280

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 49, 56, 70, 80, 98, 112, 140, 149, 196, 245, 280, 298, 359, 392, 490, 560, 596, 718, 745, 784, 980, 1043, 1192, 1436, 1490, 1795, 1960, 2086, 2384, 2513, 2872, 2980, 3590, 3920, 4172, 5026, 5215, 5744, 5960, 7180, 7301, 8344, 10052, 10430, 11920, 12565, 14360, 14602, 16688, 17591, 20104, 20860, 25130, 28720, 29204, 35182, 36505, 40208, 41720, 50260, 53491, 58408, 70364, 73010, 83440, 87955, 100520, 106982, 116816, 140728, 146020, 175910, 201040, 213964, 267455, 281456, 292040, 351820, 374437, 427928, 534910, 584080, 703640, 748874, 855856, 1069820, 1407280, 1497748, 1872185, 2139640, 2621059, 2995496, 3744370, 4279280, 5242118, 5990992, 7488740, 10484236, 13105295, 14977480, 20968472, 26210590, 29954960, 41936944, 52421180, 104842360, 209684720]

約数ペア:

[(1, 209684720), (2, 104842360), (4, 52421180), (5, 41936944), (7, 29954960), (8, 26210590), (10, 20968472), (14, 14977480), (16, 13105295), (20, 10484236), (28, 7488740), (35, 5990992), (40, 5242118), (49, 4279280), (56, 3744370), (70, 2995496), (80, 2621059), (98, 2139640), (112, 1872185), (140, 1497748), (149, 1407280), (196, 1069820), (245, 855856), (280, 748874), (298, 703640), (359, 584080), (392, 534910), (490, 427928), (560, 374437), (596, 351820), (718, 292040), (745, 281456), (784, 267455), (980, 213964), (1043, 201040), (1192, 175910), (1436, 146020), (1490, 140728), (1795, 116816), (1960, 106982), (2086, 100520), (2384, 87955), (2513, 83440), (2872, 73010), (2980, 70364), (3590, 58408), (3920, 53491), (4172, 50260), (5026, 41720), (5215, 40208), (5744, 36505), (5960, 35182), (7180, 29204), (7301, 28720), (8344, 25130), (10052, 20860), (10430, 20104), (11920, 17591), (12565, 16688), (14360, 14602)]