205480920

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{97}}^1\times {\mathrm{127}}^1\times {\mathrm{139}}^1$

素因数の和:377

約数の個数: 128

約数和(自身を含む): 632217600

約数和(自身を除く): 426736680

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 97, 120, 127, 139, 194, 254, 278, 291, 381, 388, 417, 485, 508, 556, 582, 635, 695, 762, 776, 834, 970, 1016, 1112, 1164, 1270, 1390, 1455, 1524, 1668, 1905, 1940, 2085, 2328, 2540, 2780, 2910, 3048, 3336, 3810, 3880, 4170, 5080, 5560, 5820, 7620, 8340, 11640, 12319, 13483, 15240, 16680, 17653, 24638, 26966, 35306, 36957, 40449, 49276, 52959, 53932, 61595, 67415, 70612, 73914, 80898, 88265, 98552, 105918, 107864, 123190, 134830, 141224, 147828, 161796, 176530, 184785, 202245, 211836, 246380, 264795, 269660, 295656, 323592, 353060, 369570, 404490, 423672, 492760, 529590, 539320, 706120, 739140, 808980, 1059180, 1478280, 1617960, 1712341, 2118360, 3424682, 5137023, 6849364, 8561705, 10274046, 13698728, 17123410, 20548092, 25685115, 34246820, 41096184, 51370230, 68493640, 102740460, 205480920]

約数ペア:

[(1, 205480920), (2, 102740460), (3, 68493640), (4, 51370230), (5, 41096184), (6, 34246820), (8, 25685115), (10, 20548092), (12, 17123410), (15, 13698728), (20, 10274046), (24, 8561705), (30, 6849364), (40, 5137023), (60, 3424682), (97, 2118360), (120, 1712341), (127, 1617960), (139, 1478280), (194, 1059180), (254, 808980), (278, 739140), (291, 706120), (381, 539320), (388, 529590), (417, 492760), (485, 423672), (508, 404490), (556, 369570), (582, 353060), (635, 323592), (695, 295656), (762, 269660), (776, 264795), (834, 246380), (970, 211836), (1016, 202245), (1112, 184785), (1164, 176530), (1270, 161796), (1390, 147828), (1455, 141224), (1524, 134830), (1668, 123190), (1905, 107864), (1940, 105918), (2085, 98552), (2328, 88265), (2540, 80898), (2780, 73914), (2910, 70612), (3048, 67415), (3336, 61595), (3810, 53932), (3880, 52959), (4170, 49276), (5080, 40449), (5560, 36957), (5820, 35306), (7620, 26966), (8340, 24638), (11640, 17653), (12319, 16680), (13483, 15240)]