77785455

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^2\times {\mathrm{17}}^1\times {\mathrm{2521}}^1$

素因数の和:2568

約数の個数: 48

約数和(自身を含む): 144904032

約数和(自身を除く): 67118577

約数列:

[1, 3, 5, 11, 15, 17, 33, 51, 55, 85, 121, 165, 187, 255, 363, 561, 605, 935, 1815, 2057, 2521, 2805, 6171, 7563, 10285, 12605, 27731, 30855, 37815, 42857, 83193, 128571, 138655, 214285, 305041, 415965, 471427, 642855, 915123, 1414281, 1525205, 2357135, 4575615, 5185697, 7071405, 15557091, 25928485, 77785455]

約数ペア:

[(1, 77785455), (3, 25928485), (5, 15557091), (11, 7071405), (15, 5185697), (17, 4575615), (33, 2357135), (51, 1525205), (55, 1414281), (85, 915123), (121, 642855), (165, 471427), (187, 415965), (255, 305041), (363, 214285), (561, 138655), (605, 128571), (935, 83193), (1815, 42857), (2057, 37815), (2521, 30855), (2805, 27731), (6171, 12605), (7563, 10285)]