80438220

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{97}}^1\times {\mathrm{271}}^1$

素因数の和:400

約数の個数: 144

約数和(自身を含む): 261975168

約数和(自身を除く): 181536948

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 17, 18, 20, 30, 34, 36, 45, 51, 60, 68, 85, 90, 97, 102, 153, 170, 180, 194, 204, 255, 271, 291, 306, 340, 388, 485, 510, 542, 582, 612, 765, 813, 873, 970, 1020, 1084, 1164, 1355, 1455, 1530, 1626, 1649, 1746, 1940, 2439, 2710, 2910, 3060, 3252, 3298, 3492, 4065, 4365, 4607, 4878, 4947, 5420, 5820, 6596, 8130, 8245, 8730, 9214, 9756, 9894, 12195, 13821, 14841, 16260, 16490, 17460, 18428, 19788, 23035, 24390, 24735, 26287, 27642, 29682, 32980, 41463, 46070, 48780, 49470, 52574, 55284, 59364, 69105, 74205, 78861, 82926, 92140, 98940, 105148, 131435, 138210, 148410, 157722, 165852, 207315, 236583, 262870, 276420, 296820, 315444, 394305, 414630, 446879, 473166, 525740, 788610, 829260, 893758, 946332, 1182915, 1340637, 1577220, 1787516, 2234395, 2365830, 2681274, 4021911, 4468790, 4731660, 5362548, 6703185, 8043822, 8937580, 13406370, 16087644, 20109555, 26812740, 40219110, 80438220]

約数ペア:

[(1, 80438220), (2, 40219110), (3, 26812740), (4, 20109555), (5, 16087644), (6, 13406370), (9, 8937580), (10, 8043822), (12, 6703185), (15, 5362548), (17, 4731660), (18, 4468790), (20, 4021911), (30, 2681274), (34, 2365830), (36, 2234395), (45, 1787516), (51, 1577220), (60, 1340637), (68, 1182915), (85, 946332), (90, 893758), (97, 829260), (102, 788610), (153, 525740), (170, 473166), (180, 446879), (194, 414630), (204, 394305), (255, 315444), (271, 296820), (291, 276420), (306, 262870), (340, 236583), (388, 207315), (485, 165852), (510, 157722), (542, 148410), (582, 138210), (612, 131435), (765, 105148), (813, 98940), (873, 92140), (970, 82926), (1020, 78861), (1084, 74205), (1164, 69105), (1355, 59364), (1455, 55284), (1530, 52574), (1626, 49470), (1649, 48780), (1746, 46070), (1940, 41463), (2439, 32980), (2710, 29682), (2910, 27642), (3060, 26287), (3252, 24735), (3298, 24390), (3492, 23035), (4065, 19788), (4365, 18428), (4607, 17460), (4878, 16490), (4947, 16260), (5420, 14841), (5820, 13821), (6596, 12195), (8130, 9894), (8245, 9756), (8730, 9214)]