53947720

素因数分解:

$2^3\times 5^1\times {\mathrm{811}}^1\times {\mathrm{1663}}^1$

素因数の和:2485

約数の個数: 32

約数和(自身を含む): 121605120

約数和(自身を除く): 67657400

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 811, 1622, 1663, 3244, 3326, 4055, 6488, 6652, 8110, 8315, 13304, 16220, 16630, 32440, 33260, 66520, 1348693, 2697386, 5394772, 6743465, 10789544, 13486930, 26973860, 53947720]

約数ペア:

[(1, 53947720), (2, 26973860), (4, 13486930), (5, 10789544), (8, 6743465), (10, 5394772), (20, 2697386), (40, 1348693), (811, 66520), (1622, 33260), (1663, 32440), (3244, 16630), (3326, 16220), (4055, 13304), (6488, 8315), (6652, 8110)]