399788172

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{257}}^1\times {\mathrm{6173}}^1$

素因数の和:6447

約数の個数: 72

約数和(自身を含む): 1159625376

約数和(自身を除く): 759837204

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 63, 84, 126, 252, 257, 514, 771, 1028, 1542, 1799, 2313, 3084, 3598, 4626, 5397, 6173, 7196, 9252, 10794, 12346, 16191, 18519, 21588, 24692, 32382, 37038, 43211, 55557, 64764, 74076, 86422, 111114, 129633, 172844, 222228, 259266, 388899, 518532, 777798, 1555596, 1586461, 3172922, 4759383, 6345844, 9518766, 11105227, 14278149, 19037532, 22210454, 28556298, 33315681, 44420908, 57112596, 66631362, 99947043, 133262724, 199894086, 399788172]

約数ペア:

[(1, 399788172), (2, 199894086), (3, 133262724), (4, 99947043), (6, 66631362), (7, 57112596), (9, 44420908), (12, 33315681), (14, 28556298), (18, 22210454), (21, 19037532), (28, 14278149), (36, 11105227), (42, 9518766), (63, 6345844), (84, 4759383), (126, 3172922), (252, 1586461), (257, 1555596), (514, 777798), (771, 518532), (1028, 388899), (1542, 259266), (1799, 222228), (2313, 172844), (3084, 129633), (3598, 111114), (4626, 86422), (5397, 74076), (6173, 64764), (7196, 55557), (9252, 43211), (10794, 37038), (12346, 32382), (16191, 24692), (18519, 21588)]