171381980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{67}}^1\times {\mathrm{151}}^1$

素因数の和:256

約数の個数: 144

約数和(自身を含む): 461895168

約数和(自身を除く): 290513188

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 55, 67, 70, 77, 110, 121, 134, 140, 151, 154, 220, 242, 268, 302, 308, 335, 385, 469, 484, 604, 605, 670, 737, 755, 770, 847, 938, 1057, 1210, 1340, 1474, 1510, 1540, 1661, 1694, 1876, 2114, 2345, 2420, 2948, 3020, 3322, 3388, 3685, 4228, 4235, 4690, 5159, 5285, 6644, 7370, 8107, 8305, 8470, 9380, 10117, 10318, 10570, 11627, 14740, 16214, 16610, 16940, 18271, 20234, 20636, 21140, 23254, 25795, 32428, 33220, 36542, 40468, 40535, 46508, 50585, 51590, 56749, 58135, 70819, 73084, 81070, 91355, 101170, 103180, 111287, 113498, 116270, 127897, 141638, 162140, 182710, 202340, 222574, 226996, 232540, 255794, 283276, 283745, 354095, 365420, 445148, 511588, 556435, 567490, 639485, 708190, 779009, 1112870, 1134980, 1224157, 1278970, 1416380, 1558018, 2225740, 2448314, 2557940, 3116036, 3895045, 4896628, 6120785, 7790090, 8569099, 12241570, 15580180, 17138198, 24483140, 34276396, 42845495, 85690990, 171381980]

約数ペア:

[(1, 171381980), (2, 85690990), (4, 42845495), (5, 34276396), (7, 24483140), (10, 17138198), (11, 15580180), (14, 12241570), (20, 8569099), (22, 7790090), (28, 6120785), (35, 4896628), (44, 3895045), (55, 3116036), (67, 2557940), (70, 2448314), (77, 2225740), (110, 1558018), (121, 1416380), (134, 1278970), (140, 1224157), (151, 1134980), (154, 1112870), (220, 779009), (242, 708190), (268, 639485), (302, 567490), (308, 556435), (335, 511588), (385, 445148), (469, 365420), (484, 354095), (604, 283745), (605, 283276), (670, 255794), (737, 232540), (755, 226996), (770, 222574), (847, 202340), (938, 182710), (1057, 162140), (1210, 141638), (1340, 127897), (1474, 116270), (1510, 113498), (1540, 111287), (1661, 103180), (1694, 101170), (1876, 91355), (2114, 81070), (2345, 73084), (2420, 70819), (2948, 58135), (3020, 56749), (3322, 51590), (3388, 50585), (3685, 46508), (4228, 40535), (4235, 40468), (4690, 36542), (5159, 33220), (5285, 32428), (6644, 25795), (7370, 23254), (8107, 21140), (8305, 20636), (8470, 20234), (9380, 18271), (10117, 16940), (10318, 16610), (10570, 16214), (11627, 14740)]