395418764

素因数分解:

$2^2\times {\mathrm{13}}^2\times {\mathrm{31}}^1\times {\mathrm{18869}}^1$

素因数の和:18930

約数の個数: 36

約数和(自身を含む): 773519040

約数和(自身を除く): 378100276

約数列:

[1, 2, 4, 13, 26, 31, 52, 62, 124, 169, 338, 403, 676, 806, 1612, 5239, 10478, 18869, 20956, 37738, 75476, 245297, 490594, 584939, 981188, 1169878, 2339756, 3188861, 6377722, 7604207, 12755444, 15208414, 30416828, 98854691, 197709382, 395418764]

約数ペア:

[(1, 395418764), (2, 197709382), (4, 98854691), (13, 30416828), (26, 15208414), (31, 12755444), (52, 7604207), (62, 6377722), (124, 3188861), (169, 2339756), (338, 1169878), (403, 981188), (676, 584939), (806, 490594), (1612, 245297), (5239, 75476), (10478, 37738), (18869, 20956)]