20165392

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{1447}}^1$

素因数の和:1535

約数の個数: 40

約数和(自身を含む): 42733376

約数和(自身を除く): 22567984

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 67, 104, 134, 208, 268, 536, 871, 1072, 1447, 1742, 2894, 3484, 5788, 6968, 11576, 13936, 18811, 23152, 37622, 75244, 96949, 150488, 193898, 300976, 387796, 775592, 1260337, 1551184, 2520674, 5041348, 10082696, 20165392]

約数ペア:

[(1, 20165392), (2, 10082696), (4, 5041348), (8, 2520674), (13, 1551184), (16, 1260337), (26, 775592), (52, 387796), (67, 300976), (104, 193898), (134, 150488), (208, 96949), (268, 75244), (536, 37622), (871, 23152), (1072, 18811), (1447, 13936), (1742, 11576), (2894, 6968), (3484, 5788)]