28211925

素因数分解:

$3^1\times 5^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{109}}^1$

素因数の和:175

約数の個数: 96

約数和(自身を含む): 58924800

約数和(自身を除く): 30712875

約数列:

[1, 3, 5, 7, 15, 17, 21, 25, 29, 35, 51, 75, 85, 87, 105, 109, 119, 145, 175, 203, 255, 327, 357, 425, 435, 493, 525, 545, 595, 609, 725, 763, 1015, 1275, 1479, 1635, 1785, 1853, 2175, 2289, 2465, 2725, 2975, 3045, 3161, 3451, 3815, 5075, 5559, 7395, 8175, 8925, 9265, 9483, 10353, 11445, 12325, 12971, 15225, 15805, 17255, 19075, 22127, 27795, 36975, 38913, 46325, 47415, 51765, 53737, 57225, 64855, 66381, 79025, 86275, 110635, 138975, 161211, 194565, 237075, 258825, 268685, 324275, 331905, 376159, 553175, 806055, 972825, 1128477, 1343425, 1659525, 1880795, 4030275, 5642385, 9403975, 28211925]

約数ペア:

[(1, 28211925), (3, 9403975), (5, 5642385), (7, 4030275), (15, 1880795), (17, 1659525), (21, 1343425), (25, 1128477), (29, 972825), (35, 806055), (51, 553175), (75, 376159), (85, 331905), (87, 324275), (105, 268685), (109, 258825), (119, 237075), (145, 194565), (175, 161211), (203, 138975), (255, 110635), (327, 86275), (357, 79025), (425, 66381), (435, 64855), (493, 57225), (525, 53737), (545, 51765), (595, 47415), (609, 46325), (725, 38913), (763, 36975), (1015, 27795), (1275, 22127), (1479, 19075), (1635, 17255), (1785, 15805), (1853, 15225), (2175, 12971), (2289, 12325), (2465, 11445), (2725, 10353), (2975, 9483), (3045, 9265), (3161, 8925), (3451, 8175), (3815, 7395), (5075, 5559)]