289920785

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{739}}^1\times {\mathrm{1019}}^1$

素因数の和:1781

約数の個数: 32

約数和(自身を含む): 434764800

約数和(自身を除く): 144844015

約数列:

[1, 5, 7, 11, 35, 55, 77, 385, 739, 1019, 3695, 5095, 5173, 7133, 8129, 11209, 25865, 35665, 40645, 56045, 56903, 78463, 284515, 392315, 753041, 3765205, 5271287, 8283451, 26356435, 41417255, 57984157, 289920785]

約数ペア:

[(1, 289920785), (5, 57984157), (7, 41417255), (11, 26356435), (35, 8283451), (55, 5271287), (77, 3765205), (385, 753041), (739, 392315), (1019, 284515), (3695, 78463), (5095, 56903), (5173, 56045), (7133, 40645), (8129, 35665), (11209, 25865)]