1780497565

素因数分解:

$5^1\times 7^4\times {\mathrm{11}}^1\times {\mathrm{97}}^1\times {\mathrm{139}}^1$

素因数の和:280

約数の個数: 80

約数和(自身を含む): 2766939840

約数和(自身を除く): 986442275

約数列:

[1, 5, 7, 11, 35, 49, 55, 77, 97, 139, 245, 343, 385, 485, 539, 679, 695, 973, 1067, 1529, 1715, 2401, 2695, 3395, 3773, 4753, 4865, 5335, 6811, 7469, 7645, 10703, 12005, 13483, 18865, 23765, 26411, 33271, 34055, 37345, 47677, 52283, 53515, 67415, 74921, 94381, 132055, 148313, 166355, 232897, 238385, 261415, 333739, 365981, 374605, 471905, 524447, 660667, 741565, 1038191, 1164485, 1668695, 1829905, 2561867, 2622235, 3303335, 3671129, 4624669, 5190955, 7267337, 12809335, 18355645, 23123345, 32372683, 36336685, 50871359, 161863415, 254356795, 356099513, 1780497565]

約数ペア:

[(1, 1780497565), (5, 356099513), (7, 254356795), (11, 161863415), (35, 50871359), (49, 36336685), (55, 32372683), (77, 23123345), (97, 18355645), (139, 12809335), (245, 7267337), (343, 5190955), (385, 4624669), (485, 3671129), (539, 3303335), (679, 2622235), (695, 2561867), (973, 1829905), (1067, 1668695), (1529, 1164485), (1715, 1038191), (2401, 741565), (2695, 660667), (3395, 524447), (3773, 471905), (4753, 374605), (4865, 365981), (5335, 333739), (6811, 261415), (7469, 238385), (7645, 232897), (10703, 166355), (12005, 148313), (13483, 132055), (18865, 94381), (23765, 74921), (26411, 67415), (33271, 53515), (34055, 52283), (37345, 47677)]