257328596

素因数分解:

$2^2\times 7^2\times {\mathrm{79}}^1\times {\mathrm{16619}}^1$

素因数の和:16716

約数の個数: 36

約数和(自身を含む): 530510400

約数和(自身を除く): 273181804

約数列:

[1, 2, 4, 7, 14, 28, 49, 79, 98, 158, 196, 316, 553, 1106, 2212, 3871, 7742, 15484, 16619, 33238, 66476, 116333, 232666, 465332, 814331, 1312901, 1628662, 2625802, 3257324, 5251604, 9190307, 18380614, 36761228, 64332149, 128664298, 257328596]

約数ペア:

[(1, 257328596), (2, 128664298), (4, 64332149), (7, 36761228), (14, 18380614), (28, 9190307), (49, 5251604), (79, 3257324), (98, 2625802), (158, 1628662), (196, 1312901), (316, 814331), (553, 465332), (1106, 232666), (2212, 116333), (3871, 66476), (7742, 33238), (15484, 16619)]