209689900

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{67}}^1\times {\mathrm{263}}^1$

素因数の和:368

約数の個数: 144

約数和(自身を含む): 560964096

約数和(自身を除く): 351274196

約数列:

[1, 2, 4, 5, 7, 10, 14, 17, 20, 25, 28, 34, 35, 50, 67, 68, 70, 85, 100, 119, 134, 140, 170, 175, 238, 263, 268, 335, 340, 350, 425, 469, 476, 526, 595, 670, 700, 850, 938, 1052, 1139, 1190, 1315, 1340, 1675, 1700, 1841, 1876, 2278, 2345, 2380, 2630, 2975, 3350, 3682, 4471, 4556, 4690, 5260, 5695, 5950, 6575, 6700, 7364, 7973, 8942, 9205, 9380, 11390, 11725, 11900, 13150, 15946, 17621, 17884, 18410, 22355, 22780, 23450, 26300, 28475, 31297, 31892, 35242, 36820, 39865, 44710, 46025, 46900, 56950, 62594, 70484, 79730, 88105, 89420, 92050, 111775, 113900, 123347, 125188, 156485, 159460, 176210, 184100, 199325, 223550, 246694, 299557, 312970, 352420, 398650, 440525, 447100, 493388, 599114, 616735, 625940, 782425, 797300, 881050, 1198228, 1233470, 1497785, 1564850, 1762100, 2096899, 2466940, 2995570, 3083675, 3129700, 4193798, 5991140, 6167350, 7488925, 8387596, 10484495, 12334700, 14977850, 20968990, 29955700, 41937980, 52422475, 104844950, 209689900]

約数ペア:

[(1, 209689900), (2, 104844950), (4, 52422475), (5, 41937980), (7, 29955700), (10, 20968990), (14, 14977850), (17, 12334700), (20, 10484495), (25, 8387596), (28, 7488925), (34, 6167350), (35, 5991140), (50, 4193798), (67, 3129700), (68, 3083675), (70, 2995570), (85, 2466940), (100, 2096899), (119, 1762100), (134, 1564850), (140, 1497785), (170, 1233470), (175, 1198228), (238, 881050), (263, 797300), (268, 782425), (335, 625940), (340, 616735), (350, 599114), (425, 493388), (469, 447100), (476, 440525), (526, 398650), (595, 352420), (670, 312970), (700, 299557), (850, 246694), (938, 223550), (1052, 199325), (1139, 184100), (1190, 176210), (1315, 159460), (1340, 156485), (1675, 125188), (1700, 123347), (1841, 113900), (1876, 111775), (2278, 92050), (2345, 89420), (2380, 88105), (2630, 79730), (2975, 70484), (3350, 62594), (3682, 56950), (4471, 46900), (4556, 46025), (4690, 44710), (5260, 39865), (5695, 36820), (5950, 35242), (6575, 31892), (6700, 31297), (7364, 28475), (7973, 26300), (8942, 23450), (9205, 22780), (9380, 22355), (11390, 18410), (11725, 17884), (11900, 17621), (13150, 15946)]