20187156955

素因数分解:

$5^1\times 7^3\times {\mathrm{19}}^1\times {\mathrm{139}}^1\times {\mathrm{4457}}^1$

素因数の和:4641

約数の個数: 64

約数和(自身を含む): 29957760000

約数和(自身を除く): 9770603045

約数列:

[1, 5, 7, 19, 35, 49, 95, 133, 139, 245, 343, 665, 695, 931, 973, 1715, 2641, 4457, 4655, 4865, 6517, 6811, 13205, 18487, 22285, 31199, 32585, 34055, 47677, 84683, 92435, 129409, 155995, 218393, 238385, 423415, 592781, 619523, 647045, 905863, 1091965, 1528751, 2963905, 3097615, 4149467, 4336661, 4529315, 7643755, 11770937, 20747335, 21683305, 29046269, 30356627, 58854685, 82396559, 145231345, 151783135, 212496389, 411982795, 576775913, 1062481945, 2883879565, 4037431391, 20187156955]

約数ペア:

[(1, 20187156955), (5, 4037431391), (7, 2883879565), (19, 1062481945), (35, 576775913), (49, 411982795), (95, 212496389), (133, 151783135), (139, 145231345), (245, 82396559), (343, 58854685), (665, 30356627), (695, 29046269), (931, 21683305), (973, 20747335), (1715, 11770937), (2641, 7643755), (4457, 4529315), (4655, 4336661), (4865, 4149467), (6517, 3097615), (6811, 2963905), (13205, 1528751), (18487, 1091965), (22285, 905863), (31199, 647045), (32585, 619523), (34055, 592781), (47677, 423415), (84683, 238385), (92435, 218393), (129409, 155995)]