390066545

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{71}}^1\times {\mathrm{101}}^1$

素因数の和:254

約数の個数: 64

約数和(自身を含む): 558379008

約数和(自身を除く): 168312463

約数列:

[1, 5, 11, 23, 43, 55, 71, 101, 115, 215, 253, 355, 473, 505, 781, 989, 1111, 1265, 1633, 2323, 2365, 3053, 3905, 4343, 4945, 5555, 7171, 8165, 10879, 11615, 15265, 17963, 21715, 25553, 33583, 35855, 47773, 54395, 70219, 78881, 89815, 99889, 127765, 164933, 167915, 238865, 308353, 351095, 394405, 499445, 772409, 824665, 1098779, 1541765, 1814263, 3391883, 3862045, 5493895, 7092119, 9071315, 16959415, 35460595, 78013309, 390066545]

約数ペア:

[(1, 390066545), (5, 78013309), (11, 35460595), (23, 16959415), (43, 9071315), (55, 7092119), (71, 5493895), (101, 3862045), (115, 3391883), (215, 1814263), (253, 1541765), (355, 1098779), (473, 824665), (505, 772409), (781, 499445), (989, 394405), (1111, 351095), (1265, 308353), (1633, 238865), (2323, 167915), (2365, 164933), (3053, 127765), (3905, 99889), (4343, 89815), (4945, 78881), (5555, 70219), (7171, 54395), (8165, 47773), (10879, 35855), (11615, 33583), (15265, 25553), (17963, 21715)]