51386545

素因数分解:

$5^1\times 7^3\times {\mathrm{19}}^2\times {\mathrm{83}}^1$

素因数の和:147

約数の個数: 48

約数和(自身を含む): 76809600

約数和(自身を除く): 25423055

約数列:

[1, 5, 7, 19, 35, 49, 83, 95, 133, 245, 343, 361, 415, 581, 665, 931, 1577, 1715, 1805, 2527, 2905, 4067, 4655, 6517, 7885, 11039, 12635, 17689, 20335, 28469, 29963, 32585, 55195, 77273, 88445, 123823, 142345, 149815, 209741, 386365, 540911, 619115, 1048705, 1468187, 2704555, 7340935, 10277309, 51386545]

約数ペア:

[(1, 51386545), (5, 10277309), (7, 7340935), (19, 2704555), (35, 1468187), (49, 1048705), (83, 619115), (95, 540911), (133, 386365), (245, 209741), (343, 149815), (361, 142345), (415, 123823), (581, 88445), (665, 77273), (931, 55195), (1577, 32585), (1715, 29963), (1805, 28469), (2527, 20335), (2905, 17689), (4067, 12635), (4655, 11039), (6517, 7885)]