20319068

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{1783}}^1$

素因数の和:1842

約数の個数: 48

約数和(自身を含む): 45556224

約数和(自身を除く): 25237156

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 37, 44, 74, 77, 148, 154, 259, 308, 407, 518, 814, 1036, 1628, 1783, 2849, 3566, 5698, 7132, 11396, 12481, 19613, 24962, 39226, 49924, 65971, 78452, 131942, 137291, 263884, 274582, 461797, 549164, 725681, 923594, 1451362, 1847188, 2902724, 5079767, 10159534, 20319068]

約数ペア:

[(1, 20319068), (2, 10159534), (4, 5079767), (7, 2902724), (11, 1847188), (14, 1451362), (22, 923594), (28, 725681), (37, 549164), (44, 461797), (74, 274582), (77, 263884), (148, 137291), (154, 131942), (259, 78452), (308, 65971), (407, 49924), (518, 39226), (814, 24962), (1036, 19613), (1628, 12481), (1783, 11396), (2849, 7132), (3566, 5698)]