28261532

素因数分解:

$2^2\times {\mathrm{13}}^2\times {\mathrm{97}}^1\times {\mathrm{431}}^1$

素因数の和:558

約数の個数: 36

約数和(自身を含む): 54232416

約数和(自身を除く): 25970884

約数列:

[1, 2, 4, 13, 26, 52, 97, 169, 194, 338, 388, 431, 676, 862, 1261, 1724, 2522, 5044, 5603, 11206, 16393, 22412, 32786, 41807, 65572, 72839, 83614, 145678, 167228, 291356, 543491, 1086982, 2173964, 7065383, 14130766, 28261532]

約数ペア:

[(1, 28261532), (2, 14130766), (4, 7065383), (13, 2173964), (26, 1086982), (52, 543491), (97, 291356), (169, 167228), (194, 145678), (338, 83614), (388, 72839), (431, 65572), (676, 41807), (862, 32786), (1261, 22412), (1724, 16393), (2522, 11206), (5044, 5603)]