80471781

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{641}}^1$

素因数の和:726

約数の個数: 48

約数和(自身を含む): 133202160

約数和(自身を除く): 52730379

約数列:

[1, 3, 9, 13, 29, 37, 39, 87, 111, 117, 261, 333, 377, 481, 641, 1073, 1131, 1443, 1923, 3219, 3393, 4329, 5769, 8333, 9657, 13949, 18589, 23717, 24999, 41847, 55767, 71151, 74997, 125541, 167301, 213453, 241657, 308321, 687793, 724971, 924963, 2063379, 2174913, 2774889, 6190137, 8941309, 26823927, 80471781]

約数ペア:

[(1, 80471781), (3, 26823927), (9, 8941309), (13, 6190137), (29, 2774889), (37, 2174913), (39, 2063379), (87, 924963), (111, 724971), (117, 687793), (261, 308321), (333, 241657), (377, 213453), (481, 167301), (641, 125541), (1073, 74997), (1131, 71151), (1443, 55767), (1923, 41847), (3219, 24999), (3393, 23717), (4329, 18589), (5769, 13949), (8333, 9657)]